Weakness (CWE)
CWE-79: Cross-site Scripting
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
How to prevent it (8 mitigations)
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Examples of libraries and frameworks that make it easier to generate properly encoded output include Microsoft's Anti-XSS library, the OWASP ESAPI Encoding module, and Apache Wicket.
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Implementation, Architecture and Design
Understand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages. Study all expected communication protocols and data representations to determine the required encoding strategies.
For any data that will be output to another web page, especially any data that was received from external inputs, use the appropriate encoding on all non-alphanumeric characters.
Parts of the same output document may require different encodings, which will vary depending on whether the output is in the:
- HTML body
- Element attributes (such as src="XYZ")
- URIs
- JavaScript sections
- Cascading Style Sheets and style property
etc. Note that HTML Entity Encoding is only appropriate for the HTML body.
Consult the XSS Prevention Cheat Sheet [REF-724] for more details on the types of encoding and escaping that are needed.
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Architecture and Design, Implementation
Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
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Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
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Architecture and Design
If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.
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Implementation
Use and specify an output encoding that can be handled by the downstream component that is reading the output. Common encodings include ISO-8859-1, UTF-7, and UTF-8. When an encoding is not specified, a downstream component may choose a different encoding, either by assuming a default encoding or automatically inferring which encoding is being used, which can be erroneous. When the encodings are inconsistent, the downstream component might treat some character or byte sequences as special, even if they are not special in the original encoding. Attackers might then be able to exploit this discrepancy and conduct injection attacks; they even might be able to bypass protection mechanisms that assume the original encoding is also being used by the downstream component.
The problem of inconsistent output encodings often arises in web pages. If an encoding is not specified in an HTTP header, web browsers often guess about which encoding is being used. This can open up the browser to subtle XSS attacks.
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Implementation
With Struts, write all data from form beans with the bean's filter attribute set to true.
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Implementation
To help mitigate XSS attacks against the user's session cookie, set the session cookie to be HttpOnly. In browsers that support the HttpOnly feature (such as more recent versions of Internet Explorer and Firefox), this attribute can prevent the user's session cookie from being accessible to malicious client-side scripts that use document.cookie. This is not a complete solution, since HttpOnly is not supported by all browsers. More importantly, XmlHttpRequest and other powerful browser technologies provide read access to HTTP headers, including the Set-Cookie header in which the HttpOnly flag is set.
Source: MITRE CWE-79
2,694 results · Clear filters · Feed
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Low 3.5
Campcodes Legal Case Management System tax cross site scripting
A vulnerability was found in Campcodes Legal Case Management System 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /admin/tax. The manipulation of the argument name leads to cross site scripting. The attack…
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Low 3.5
Campcodes Legal Case Management System tasks cross site scripting
A vulnerability has been found in Campcodes Legal Case Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/tasks. The manipulation of the argument task_subject leads to cross site …
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Low 3.5
Campcodes Legal Case Management System service cross site scripting
A vulnerability, which was classified as problematic, has been found in Campcodes Legal Case Management System 1.0. Affected by this issue is some unknown functionality of the file /admin/service. The manipulation of the argument name leads to cross site scri…
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Low 3.5
Campcodes Legal Case Management System role cross site scripting
A vulnerability classified as problematic was found in Campcodes Legal Case Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/role. The manipulation of the argument slug leads to cross site scripting. The att…
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Low 3.5
Campcodes Legal Case Management System judge cross site scripting
A vulnerability classified as problematic has been found in Campcodes Legal Case Management System 1.0. Affected is an unknown function of the file /admin/judge. The manipulation of the argument judge_name leads to cross site scripting. It is possible to laun…
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Low 3.5
Campcodes Legal Case Management System expense-type cross site scripting
A vulnerability was found in Campcodes Legal Case Management System 1.0. It has been rated as problematic. This issue affects some unknown processing of the file /admin/expense-type. The manipulation of the argument name leads to cross site scripting. The att…
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Low 3.5
Campcodes Legal Case Management System court cross site scripting
A vulnerability was found in Campcodes Legal Case Management System 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file /admin/court. The manipulation of the argument court_name leads to cross site scripting. The atta…
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Low 3.5
Campcodes Legal Case Management System court-type cross site scripting
A vulnerability was found in Campcodes Legal Case Management System 1.0. It has been classified as problematic. This affects an unknown part of the file /admin/court-type. The manipulation of the argument court_name leads to cross site scripting. It is possib…
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Low 3.5
Campcodes Legal Case Management System clients cross site scripting
A vulnerability was found in Campcodes Legal Case Management System 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /admin/clients. The manipulation of the argument f_name leads to cross site scripting. The …
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Low 3.5
Campcodes Legal Case Management System client_user cross site scripting
A vulnerability has been found in Campcodes Legal Case Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/client_user. The manipulation of the argument f_name leads to cross site …
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Low 3.5
Campcodes Legal Case Management System case-type cross site scripting
A vulnerability, which was classified as problematic, was found in Campcodes Legal Case Management System 1.0. Affected is an unknown function of the file /admin/case-type. The manipulation of the argument case_type_name leads to cross site scripting. It is p…
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Low 3.5
Campcodes Legal Case Management System case-status cross site scripting
A vulnerability, which was classified as problematic, has been found in Campcodes Legal Case Management System 1.0. This issue affects some unknown processing of the file /admin/case-status. The manipulation of the argument case_status leads to cross site scr…
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Low 3.5
Campcodes Complete Web-Based School Management System index.php cross site scripting
A vulnerability classified as problematic was found in Campcodes Complete Web-Based School Management System 1.0. This vulnerability affects unknown code of the file index.php. The manipulation of the argument category leads to cross site scripting. The attac…
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Low 3.5
Campcodes Complete Web-Based School Management System add_student_subject.php cross site scripting
A vulnerability classified as problematic has been found in Campcodes Complete Web-Based School Management System 1.0. This affects an unknown part of the file /model/add_student_subject.php. The manipulation of the argument index leads to cross site scriptin…
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Low 3.5
Campcodes Complete Web-Based School Management System approve_petty_cash.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /model/approve_petty_cash.php. The manipulation of the argument admin_in…
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Low 3.5
Campcodes Complete Web-Based School Management System delete_record.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /model/delete_record.php. The manipulation of the argument page…
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Low 3.5
Campcodes Complete Web-Based School Management System delete_student_grade_subject.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0. It has been classified as problematic. Affected is an unknown function of the file /model/delete_student_grade_subject.php. The manipulation of the argument index leads to…
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Low 3.5
Campcodes Complete Web-Based School Management System update_classroom.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0 and classified as problematic. This issue affects some unknown processing of the file /model/update_classroom.php. The manipulation of the argument name leads to cross site…
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Low 3.5
Campcodes Complete Web-Based School Management System update_exam.php cross site scripting
A vulnerability has been found in Campcodes Complete Web-Based School Management System 1.0 and classified as problematic. This vulnerability affects unknown code of the file /model/update_exam.php. The manipulation of the argument name leads to cross site sc…
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Low 3.5
Campcodes Complete Web-Based School Management System update_grade.php cross site scripting
A vulnerability, which was classified as problematic, was found in Campcodes Complete Web-Based School Management System 1.0. This affects an unknown part of the file /model/update_grade.php. The manipulation of the argument name leads to cross site scripting…
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Low 3.5
Campcodes Complete Web-Based School Management System update_subject.php cross site scripting
A vulnerability, which was classified as problematic, has been found in Campcodes Complete Web-Based School Management System 1.0. Affected by this issue is some unknown functionality of the file /model/update_subject.php. The manipulation of the argument nam…
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Low 3.5
Campcodes Complete Web-Based School Management System all_teacher.php cross site scripting
A vulnerability classified as problematic was found in Campcodes Complete Web-Based School Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /view/all_teacher.php. The manipulation of the argument page leads to cros…
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Low 3.5
Campcodes Complete Web-Based School Management System conversation_history_admin.php cross site scripting
A vulnerability classified as problematic was found in Campcodes Complete Web-Based School Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /view/conversation_history_admin.php. The manipulation of the argument con…
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Low 3.5
Campcodes Complete Web-Based School Management System create_events.php cross site scripting
A vulnerability classified as problematic has been found in Campcodes Complete Web-Based School Management System 1.0. Affected is an unknown function of the file /view/create_events.php. The manipulation of the argument my_index leads to cross site scripting…
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Low 3.5
Campcodes Complete Web-Based School Management System emarks_range_grade_update_form.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0. It has been rated as problematic. This issue affects some unknown processing of the file /view/emarks_range_grade_update_form.php. The manipulation of the argument grade l…
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Low 3.5
Campcodes Complete Web-Based School Management System exam_timetable.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file /view/exam_timetable.php. The manipulation of the argument exam leads to cross sit…
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Low 3.5
Campcodes Complete Web-Based School Management System exam_timetable_grade_wise.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0. It has been classified as problematic. This affects an unknown part of the file /view/exam_timetable_grade_wise.php. The manipulation of the argument exam leads to cross s…
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Low 3.5
Campcodes Complete Web-Based School Management System exam_timetable_insert_form.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /view/exam_timetable_insert_form.php. The manipulation of the argument exam …
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Low 3.5
Campcodes Complete Web-Based School Management System exam_timetable_update_form.php cross site scripting
A vulnerability has been found in Campcodes Complete Web-Based School Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /view/exam_timetable_update_form.php. The manipulation of the arg…
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Low 3.5
Campcodes Complete Web-Based School Management System find_friends.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /view/find_friends.php. The manipulation of the argument my_typ…
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Low 3.5
Campcodes Complete Web-Based School Management System my_student_exam_marks1.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0. It has been classified as problematic. Affected is an unknown function of the file /view/my_student_exam_marks1.php. The manipulation of the argument year leads to cross s…
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Low 3.5
Campcodes Complete Web-Based School Management System range_grade_text.php cross site scripting
A vulnerability was found in Campcodes Complete Web-Based School Management System 1.0 and classified as problematic. This issue affects some unknown processing of the file /view/range_grade_text.php. The manipulation of the argument count leads to cross site…
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Low 3.5
Campcodes Complete Web-Based School Management System show_events.php cross site scripting
A vulnerability has been found in Campcodes Complete Web-Based School Management System 1.0 and classified as problematic. This vulnerability affects unknown code of the file /view/show_events.php. The manipulation of the argument event_id leads to cross site…
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Low 3.5
Campcodes Complete Web-Based School Management System show_friend_request.php cross site scripting
A vulnerability, which was classified as problematic, was found in Campcodes Complete Web-Based School Management System 1.0. This affects an unknown part of the file /view/show_friend_request.php. The manipulation of the argument my_index leads to cross site…
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Low 3.5
Campcodes Complete Web-Based School Management System show_student_grade_subject.php cross site scripting
A vulnerability, which was classified as problematic, has been found in Campcodes Complete Web-Based School Management System 1.0. Affected by this issue is some unknown functionality of the file /view/show_student_grade_subject.php. The manipulation of the a…
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Low 3.5
Campcodes Complete Web-Based School Management System show_student_subject.php cross site scripting
A vulnerability classified as problematic was found in Campcodes Complete Web-Based School Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /view/show_student_subject.php. The manipulation of the argument id leads …
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Low 3.5
Campcodes Complete Web-Based School Management System show_teacher2.php cross site scripting
A vulnerability, which was classified as problematic, was found in Campcodes Complete Web-Based School Management System 1.0. Affected is an unknown function of the file /view/show_teacher2.php. The manipulation of the argument month leads to cross site scrip…
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Low 3.5
Campcodes Complete Web-Based School Management System student_attendance_history1.php cross site scripting
A vulnerability, which was classified as problematic, has been found in Campcodes Complete Web-Based School Management System 1.0. This issue affects some unknown processing of the file /view/student_attendance_history1.php. The manipulation of the argument y…
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Low 3.5
Campcodes Complete Web-Based School Management System student_due_payment.php cross site scripting
A vulnerability classified as problematic was found in Campcodes Complete Web-Based School Management System 1.0. This vulnerability affects unknown code of the file /view/student_due_payment.php. The manipulation of the argument due_month leads to cross site…
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Low 3.5
Campcodes Complete Web-Based School Management System student_exam_mark_insert_form1.php cross site scripting
A vulnerability classified as problematic has been found in Campcodes Complete Web-Based School Management System 1.0. This affects an unknown part of the file /view/student_exam_mark_insert_form1.php. The manipulation of the argument page leads to cross site…