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
Jspxcms Document Management Page InfoController.java cross site scripting
A vulnerability was found in Jspxcms 10.2.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file src\main\java\com\jspxcms\core\web\back\InfoController.java of the component Document Management Page. The…
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Low 2.4
DedeBIZ Website Copyright Setting cross site scripting
A vulnerability, which was classified as problematic, was found in DedeBIZ 6.3.0. This affects an unknown part of the component Website Copyright Setting. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The expl…
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Low 3.5
code-projects Simple Online Hotel Reservation System Make a Reservation Page add_reserve.php cross site scripting
A vulnerability has been found in code-projects Simple Online Hotel Reservation System 1.0 and classified as problematic. This vulnerability affects unknown code of the file add_reserve.php of the component Make a Reservation Page. The manipulation of the arg…
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Low 3.5
code-projects Online FIR System registercomplaint.php cross site scripting
A vulnerability was found in code-projects Online FIR System 1.0. It has been classified as problematic. This affects an unknown part of the file registercomplaint.php. The manipulation of the argument Name/Address leads to cross site scripting. It is possibl…
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Low 2.4
SourceCodester House Rental Management System Manage Invoice Details cross site scripting
A vulnerability has been found in SourceCodester House Rental Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Manage Invoice Details. The manipulation of the argument Invoice lea…
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Low 2.4
SourceCodester House Rental Management System Manage Tenant Details cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester House Rental Management System 1.0. Affected is an unknown function of the component Manage Tenant Details. The manipulation of the argument Name leads to cross site scripting. …
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Low 2.4
SourceCodester House Rental Management System index.php cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester House Rental Management System 1.0. This issue affects some unknown processing of the file index.php. The manipulation of the argument page leads to cross site scripting. T…
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Low 2.4
Blood Bank & Donor Management request-received-bydonar.php cross site scripting
A vulnerability, which was classified as problematic, was found in Blood Bank & Donor Management 1.0. This affects an unknown part of the file request-received-bydonar.php. The manipulation leads to cross site scripting. It is possible to initiate the attack …
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Low 3.5
code-projects Employee Profile Management System edit_position_query.php cross site scripting
A vulnerability, which was classified as problematic, was found in code-projects Employee Profile Management System 1.0. Affected is an unknown function of the file edit_position_query.php. The manipulation of the argument pos_name leads to cross site scripti…
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Low 3.5
cloudfavorites favorites-web Nickname cross site scripting
A vulnerability, which was classified as problematic, has been found in cloudfavorites favorites-web 1.3.0. Affected by this issue is some unknown functionality of the component Nickname Handler. The manipulation leads to cross site scripting. The attack may …
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Low 3.5
qkmc-rk redbbs Nickname cross site scripting
A vulnerability classified as problematic was found in qkmc-rk redbbs 1.0. Affected by this vulnerability is an unknown functionality of the component Nickname Handler. The manipulation leads to cross site scripting. The attack can be launched remotely. The e…
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Low 3.5
CodeAstro Simple Banking System Create a User Page createuser.php cross site scripting
A vulnerability classified as problematic has been found in CodeAstro Simple Banking System 1.0. This affects an unknown part of the file createuser.php of the component Create a User Page. The manipulation leads to cross site scripting. It is possible to ini…
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Low 3.5
CodeAstro Online Food Ordering System dishes.php cross site scripting
A vulnerability was found in CodeAstro Online Food Ordering System 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file dishes.php. The manipulation of the argument res_id leads to cross site scripting. The a…
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Low 3.5
CodeAstro POS and Inventory Management System New Item Creation Page new_item cross site scripting
A vulnerability was found in CodeAstro POS and Inventory Management System 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /new_item of the component New Item Creation Page. The manipulation of …
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Low 3.5
qkmc-rk redbbs Post cross site scripting
A vulnerability classified as problematic has been found in qkmc-rk redbbs 1.0. Affected is an unknown function of the component Post Handler. The manipulation of the argument title leads to cross site scripting. It is possible to launch the attack remotely. …
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Low 3.5
CodeAstro Vehicle Booking System Feedback Page user-give-feedback.php cross site scripting
A vulnerability has been found in CodeAstro Vehicle Booking System 1.0 and classified as problematic. This vulnerability affects unknown code of the file usr/user-give-feedback.php of the component Feedback Page. The manipulation of the argument My Testemonia…
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Low 3.5
Chanzhaoyu chatgpt-web cross site scripting
A vulnerability, which was classified as problematic, has been found in Chanzhaoyu chatgpt-web 2.11.1. This issue affects some unknown processing. The manipulation of the argument Description with the input <image src onerror=prompt(document.domain)> leads to…
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Low 3.5
Kashipara Food Management System party_submit.php cross site scripting
A vulnerability was found in Kashipara Food Management System up to 1.0. It has been rated as problematic. This issue affects some unknown processing of the file party_submit.php. The manipulation of the argument party_address leads to cross site scripting. T…
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Low 3.5
Kashipara Food Management System party_details.php cross site scripting
A vulnerability was found in Kashipara Food Management System up to 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file party_details.php. The manipulation of the argument party_name leads to cross site scripting. The…
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Low 3.5
Kashipara Food Management System addmaterialsubmit.php cross site scripting
A vulnerability was found in Kashipara Food Management System up to 1.0. It has been classified as problematic. This affects an unknown part of the file addmaterialsubmit.php. The manipulation of the argument tin leads to cross site scripting. It is possible …
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Low 2.4
Online Job Portal Create News Page News.php cross site scripting
A vulnerability was found in Online Job Portal 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /Admin/News.php of the component Create News Page. The manipulation of the argument News with the input </title>…
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Low 3.5
RRJ Nueva Ecija Engineer Online Portal Quiz add_quiz.php cross site scripting
A vulnerability was found in RRJ Nueva Ecija Engineer Online Portal 1.0 and classified as problematic. This issue affects some unknown processing of the file add_quiz.php of the component Quiz Handler. The manipulation of the argument Quiz Title/Quiz Descript…
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Low 3.5
RRJ Nueva Ecija Engineer Online Portal Create Message teacher_message.php cross site scripting
A vulnerability has been found in RRJ Nueva Ecija Engineer Online Portal 1.0 and classified as problematic. This vulnerability affects unknown code of the file teacher_message.php of the component Create Message Handler. The manipulation of the argument Conte…
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Low 3.5
Acumos Design Studio cross site scripting
A vulnerability, which was classified as problematic, was found in Acumos Design Studio up to 2.0.7. Affected is an unknown function. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to version 2.0.8 is a…
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Low 2.6
Zimbra zm-ajax XFormItem.js XFormItem.prototype.setError cross site scripting
A vulnerability has been found in Zimbra zm-ajax up to 8.8.1 and classified as problematic. Affected by this vulnerability is the function XFormItem.prototype.setError of the file WebRoot/js/ajax/dwt/xforms/XFormItem.js. The manipulation of the argument messa…
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Low 3.5
rt-prettyphoto Plugin rt-prettyphoto.php royal_prettyphoto_plugin_links cross site scripting
A vulnerability was found in rt-prettyphoto Plugin up to 1.2 on WordPress and classified as problematic. Affected by this issue is the function royal_prettyphoto_plugin_links of the file rt-prettyphoto.php. The manipulation leads to cross site scripting. The …
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Low 2.4
RRJ Nueva Ecija Engineer Online Portal Add Enginer edit_teacher.php cross site scripting
A vulnerability was found in RRJ Nueva Ecija Engineer Online Portal 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file /admin/edit_teacher.php of the component Add Enginer. The manipulation of the argument Firstname/…
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Low 2.4
RRJ Nueva Ecija Engineer Online Portal Admin Panel admin_user.php cross site scripting
A vulnerability was found in RRJ Nueva Ecija Engineer Online Portal 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/admin_user.php of the component Admin Panel. The manipulation of the ar…
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Low 2.4
Novel-Plus Friendly Link FriendLinkController.java cross site scripting
A vulnerability was found in Novel-Plus up to 4.2.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file novel-admin/src/main/java/com/java2nb/novel/controller/FriendLinkController.java of the component …
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Low 3.7
Mattermost Cross-site Scripting vulnerability
Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.
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Low 3.7
XSS Vulnerability Messages
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Pandora FMS on all allows Cross-Site Scripting (XSS). Through an HTML payload (iframe tag) it is possible to carry out XSS attacks when the user receiving th…
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Low 3.0
User notification settings edition
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Pandora FMS on all allows Cross-Site Scripting (XSS). Allows you to edit the Web Console user notification options. This issue affects Pandora FMS: from 700 …
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Low 3.5
Novel-Plus HTTP POST Request updateUserInfo cross site scripting
A vulnerability classified as problematic has been found in Novel-Plus up to 4.2.0. This affects an unknown part of the file /user/updateUserInfo of the component HTTP POST Request Handler. The manipulation of the argument nickName leads to cross site scripti…
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Low 2.4
SourceCodester Engineers Online Portal Add Engineer cross site scripting
A vulnerability was found in SourceCodester Engineers Online Portal 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Add Engineer Handler. The manipulation of the argument first name/last name with t…
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Low 3.5
code-projects QR Code Generator cross site scripting
A vulnerability was found in code-projects QR Code Generator 1.0. It has been classified as problematic. This affects an unknown part of the file /download.php?file=author.png. The manipulation of the argument file with the input "><iMg src=N onerror=alert(do…
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Low 2.4
code-projects Client Details System regester.php cross site scripting
A vulnerability was found in code-projects Client Details System 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /admin/regester.php. The manipulation of the argument fname/lname/email/contact leads to c…
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Low 2.0
Winter CMS Stored XSS through Backend ColorPicker FormWidget
Winter is a free, open-source content management system. Prior to 1.2.4, Users with access to backend forms that include a ColorPicker FormWidget can provide a value that would then be rendered unescaped in the backend form, potentially allowing for a stored …
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Low 2.0
Stored XSS through privileged upload of Media Manager file followed by renaming
Winter is a free, open-source content management system. Prior to 1.2.4, users with the `media.manage_media` permission can upload files to the Media Manager and rename them after uploading. Previously, media manager files were only sanitized on upload, not o…
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Low 2.4
code-projects Record Management System Document Type doctype.php cross site scripting
A vulnerability classified as problematic was found in code-projects Record Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /main/doctype.php of the component Document Type Handler. The manipulation of the argumen…
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Low 2.4
code-projects Record Management System Offices offices.php cross site scripting
A vulnerability classified as problematic has been found in code-projects Record Management System 1.0. Affected is an unknown function of the file /main/offices.php of the component Offices Handler. The manipulation of the argument officename with the input …