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
MAGESH-K21 Online-College-Event-Hall-Reservation-System update-rooms.php cross site scripting
A vulnerability was found in MAGESH-K21 Online-College-Event-Hall-Reservation-System 1.0. It has been rated as problematic. This issue affects some unknown processing of the file /admin/update-rooms.php. The manipulation of the argument id leads to cross site…
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Low 3.5
MAGESH-K21 Online-College-Event-Hall-Reservation-System rooms.php cross site scripting
A vulnerability has been found in MAGESH-K21 Online-College-Event-Hall-Reservation-System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/rooms.php. The manipulation of the argument id leads to …
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Low 3.5
MAGESH-K21 Online-College-Event-Hall-Reservation-System receipt.php cross site scripting
A vulnerability, which was classified as problematic, was found in MAGESH-K21 Online-College-Event-Hall-Reservation-System 1.0. Affected is an unknown function of the file /admin/receipt.php. The manipulation of the argument id leads to cross site scripting. …
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Low 3.5
MAGESH-K21 Online-College-Event-Hall-Reservation-System booktime.php cross site scripting
A vulnerability classified as problematic was found in MAGESH-K21 Online-College-Event-Hall-Reservation-System 1.0. This vulnerability affects unknown code of the file /admin/booktime.php. The manipulation of the argument id leads to cross site scripting. The…
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Low 3.5
MAGESH-K21 Online-College-Event-Hall-Reservation-System bookdate.php cross site scripting
A vulnerability was found in MAGESH-K21 Online-College-Event-Hall-Reservation-System 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /admin/bookdate.php. The manipulation of the argument id leads to cros…
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Low 3.5
MAGESH-K21 Online-College-Event-Hall-Reservation-System navbar.php cross site scripting
A vulnerability was found in MAGESH-K21 Online-College-Event-Hall-Reservation-System 1.0. It has been classified as problematic. Affected is an unknown function of the file navbar.php. The manipulation of the argument id leads to cross site scripting. It is p…
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Low 3.5
MAGESH-K21 Online-College-Event-Hall-Reservation-System book_history.php cross site scripting
A vulnerability was found in MAGESH-K21 Online-College-Event-Hall-Reservation-System 1.0 and classified as problematic. This issue affects some unknown processing of the file book_history.php. The manipulation of the argument id leads to cross site scripting.…
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Low 3.5
MAGESH-K21 Online-College-Event-Hall-Reservation-System home.php cross site scripting
A vulnerability, which was classified as problematic, has been found in MAGESH-K21 Online-College-Event-Hall-Reservation-System 1.0. Affected by this issue is some unknown functionality of the file home.php. The manipulation of the argument id leads to cross …
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Low 3.5
MHA Sistemas arMHAzena Cadastro Page cross site scripting
A vulnerability classified as problematic has been found in MHA Sistemas arMHAzena 9.6.0.0. This affects an unknown part of the component Cadastro Page. The manipulation of the argument Query leads to cross site scripting. It is possible to initiate the attac…
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Low 2.4
EVE-NG Lab cross site scripting
A vulnerability was found in EVE-NG 5.0.1-13 and classified as problematic. Affected by this issue is some unknown functionality of the component Lab Handler. The manipulation leads to cross site scripting. The attack may be launched remotely. The exploit has…
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Low 3.5
boyiddha Automated-Mess-Management-System member_edit.php cross site scripting
A vulnerability, which was classified as problematic, has been found in boyiddha Automated-Mess-Management-System 1.0. Affected by this issue is some unknown functionality of the file /member/member_edit.php. The manipulation of the argument name leads to cro…
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Low 3.5
boyiddha Automated-Mess-Management-System Chat Book chat.php cross site scripting
A vulnerability classified as problematic was found in boyiddha Automated-Mess-Management-System 1.0. Affected by this vulnerability is an unknown functionality of the file /member/chat.php of the component Chat Book. The manipulation of the argument msg lead…
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Low 2.4
Bdtask G-Prescription Gynaecology & OBS Consultation Software Edit Venue Page cross site scripting
A vulnerability has been found in Bdtask G-Prescription Gynaecology & OBS Consultation Software 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /Venue_controller/edit_venue/ of the component Edit Venue…
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Low 2.4
Bdtask G-Prescription Gynaecology & OBS Consultation Software OBS Patient/Gynee Prescription cross site scripting
A vulnerability, which was classified as problematic, was found in Bdtask G-Prescription Gynaecology & OBS Consultation Software 1.0. Affected is an unknown function of the component OBS Patient/Gynee Prescription. The manipulation of the argument Patient Tit…
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Low 2.4
Bdtask G-Prescription Gynaecology & OBS Consultation Software Prescription Dashboard Index cross site scripting
A vulnerability, which was classified as problematic, has been found in Bdtask G-Prescription Gynaecology & OBS Consultation Software 1.0. This issue affects some unknown processing of the file /Home/Index of the component Prescription Dashboard. The manipula…
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Low 3.5
keerti1924 Secret-Coder-PHP-Project Login Page login.php cross site scripting
A vulnerability has been found in keerti1924 Secret-Coder-PHP-Project 1.0 and classified as problematic. This vulnerability affects unknown code of the file /login.php of the component Login Page. The manipulation of the argument emailcookie/passwordcookie le…
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Low 2.2
Concrete CMS version 9 before 9.2.7 is vulnerable to Stored XSS via the Name field of a Group type
Concrete CMS version 9 before 9.2.7 is vulnerable to Stored XSS via the Name field of a Group type since there is insufficient validation of administrator provided data for that field. A rogue administrator could inject malicious code into the Name field whic…
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Low 3.5
SourceCodester Online Mobile Management Store ?p=products cross site scripting
A vulnerability was found in SourceCodester Online Mobile Management Store 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /?p=products. The manipulation of the argument search leads to cross si…
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Low 3.5
SourceCodester Online Mobile Management Store update-tracker.php cross site scripting
A vulnerability was found in SourceCodester Online Mobile Management Store 1.0. It has been classified as problematic. Affected is an unknown function of the file /endpoint/update-tracker.php. The manipulation of the argument firstname leads to cross site scr…
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Low 2.4
Bdtask Hospita AutoManager Hospital Activities Page form cross site scripting
A vulnerability was found in Bdtask Hospita AutoManager up to 20240223 and classified as problematic. This issue affects some unknown processing of the file /hospital_activities/birth/form of the component Hospital Activities Page. The manipulation of the arg…
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Low 2.4
Bdtask Isshue Multi Store eCommerce Shopping Cart Solution Manage Sale Page manage_invoice cross site scripting
A vulnerability, which was classified as problematic, was found in Bdtask Isshue Multi Store eCommerce Shopping Cart Solution 4.0. This affects an unknown part of the file /dashboard/Cinvoice/manage_invoice of the component Manage Sale Page. The manipulation …
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Low 3.5
SourceCodester Daily Habit Tracker update-tracker.php cross site scripting
A vulnerability was found in SourceCodester Daily Habit Tracker 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /endpoint/update-tracker.php. The manipulation of the argument day leads to cross …
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Low 3.5
SourceCodester Flashcard Quiz App update-flashcard.php cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Flashcard Quiz App 1.0. This affects an unknown part of the file /endpoint/update-flashcard.php. The manipulation of the argument question/answer leads to cross site scripting. …
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Low 3.5
SourceCodester FAQ Management System Update FAQ cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester FAQ Management System 1.0. Affected by this issue is some unknown functionality of the component Update FAQ. The manipulation of the argument Frequently Asked Question lead…
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Low 3.5
SourceCodester FAQ Management System add-faq.php cross site scripting
A vulnerability classified as problematic was found in SourceCodester FAQ Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /endpoint/add-faq.php. The manipulation of the argument question/answer leads to cross site…
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Low 3.5
SourceCodester Computer Inventory System update-computer.php cross site scripting
A vulnerability was found in SourceCodester Computer Inventory System 1.0. It has been rated as problematic. This issue affects some unknown processing of the file /endpoint/update-computer.php. The manipulation of the argument model leads to cross site scrip…
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Low 2.4
SourceCodester Computer Inventory System add-computer.php cross site scripting
A vulnerability was found in SourceCodester Computer Inventory System 1.0. It has been classified as problematic. This affects an unknown part of the file /endpoint/add-computer.php. The manipulation of the argument model leads to cross site scripting. It is …
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Low 3.5
SourceCodester Barangay Population Monitoring System update-resident.php cross site scripting
A vulnerability was found in SourceCodester Barangay Population Monitoring System up to 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /endpoint/update-resident.php. The manipulation of the argument full_na…
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Low 2.4
SourceCodester Petrol Pump Management Software profile_crud.php cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Petrol Pump Management Software 1.0. Affected is an unknown function of the file /admin/app/profile_crud.php. The manipulation of the argument username leads to cross site scrip…
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Low 3.5
SourceCodester Online Job Portal EditProfile.php cross site scripting
A vulnerability was found in SourceCodester Online Job Portal 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /Employer/EditProfile.php. The manipulation of the argument Address leads to cross site scripting…
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Low 1.9
Self cross-site scripting (XSS) vulnerability in storage nodes search field. The following products are affected: Acron…
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Low 3.1
Stored cross-site scripting (XSS) vulnerability due to missing origin validation in postMessage. The following products…
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Low 3.5
SourceCodester Online Job Portal Manage Job Page ManageJob.php cross site scripting
A vulnerability has been found in SourceCodester Online Job Portal 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /Employer/ManageJob.php of the component Manage Job Page. The manipulation of the argu…
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Low 3.5
SourceCodester Online Job Portal Manage Walkin Page ManageWalkin.php cross site scripting
A vulnerability classified as problematic was found in SourceCodester Online Job Portal 1.0. This vulnerability affects unknown code of the file /Employer/ManageWalkin.php of the component Manage Walkin Page. The manipulation of the argument Job Title leads t…
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Low 3.5
SourceCodester Employee Management System Project Assignment Report assignp.php cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Employee Management System 1.0. Affected is an unknown function of the file /process/assignp.php of the component Project Assignment Report. The manipulation of the argument pna…
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Low 3.5
SourceCodester Simple Student Attendance System ?page=attendance&class_id=1 cross site scripting
A vulnerability was found in SourceCodester Simple Student Attendance System 1.0. It has been classified as problematic. This affects an unknown part of the file ?page=attendance&class_id=1. The manipulation of the argument class_date with the input 2024-02-2…
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Low 2.4
PHPGurukul Tourism Management System user-bookings.php cross site scripting
A vulnerability classified as problematic has been found in PHPGurukul Tourism Management System 1.0. Affected is an unknown function of the file user-bookings.php. The manipulation of the argument Full Name leads to cross site scripting. It is possible to la…
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Low 2.4
Bdtask Bhojon Best Restaurant Management Software Message Page message cross site scripting
A vulnerability, which was classified as problematic, has been found in Bdtask Bhojon Best Restaurant Management Software 2.9. This issue affects some unknown processing of the file /dashboard/message of the component Message Page. The manipulation of the arg…
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Low 3.5
ZKTeco ZKBio Access IVS Department Name Search Bar cross site scripting
A vulnerability was determined in ZKTeco ZKBio Access IVS up to 3.3.2. This impacts an unknown function of the component Department Name Search Bar. This manipulation with the input <marquee>hi causes cross site scripting. Remote exploitation of the attack is…
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Low 3.5
Cross-Site Scripting (XSS) via File Upload in Alf.io
Alf.io is a free and open source event attendance management system. An administrator on the alf.io application is able to upload HTML files that trigger JavaScript payloads. As such, an attacker gaining administrative access to the alf.io application may be …