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 2.4
kurniaramadhan E-Commerce-PHP Create Product Page create_product.php cross site scripting
A vulnerability was found in kurniaramadhan E-Commerce-PHP 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /admin/create_product.php of the component Create Product Page. The manipulation of the argument…
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Low 2.4
wander-chu SpringBoot-Blog Blog Article PageController.java modifiyArticle cross site scripting
A vulnerability was found in wander-chu SpringBoot-Blog 1.0 and classified as problematic. This issue affects the function modifiyArticle of the file src/main/java/com/my/blog/website/controller/admin/PageController.java of the component Blog Article Handler.…
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Low 3.5
langhsu Mblog Blog System Search Bar search cross site scripting
A vulnerability classified as problematic was found in langhsu Mblog Blog System 3.5.0. Affected by this vulnerability is an unknown functionality of the file /search of the component Search Bar. The manipulation of the argument kw leads to cross site scripti…
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Low 3.5
donglight bookstore电商书城系统说明 AdminUserControlle.java updateUser cross site scripting
A vulnerability was found in donglight bookstore电商书城系统说明 1.0.0. It has been rated as problematic. This issue affects the function updateUser of the file src/main/Java/org/zdd/bookstore/web/controller/admin/AdminUserControlle.java. The manipulation leads to cr…
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Low 3.5
donglight bookstore电商书城系统说明 BookInfoController.java BookSearchList cross site scripting
A vulnerability was found in donglight bookstore电商书城系统说明 1.0.0. It has been declared as problematic. This vulnerability affects the function BookSearchList of the file src/main/java/org/zdd/bookstore/web/controller/BookInfoController.java. The manipulation of…
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Low 3.5
ZeroWdd myblog BlogController.java update cross site scripting
A vulnerability, which was classified as problematic, was found in ZeroWdd myblog 1.0. Affected is the function update of the file src/main/java/com/wdd/myblog/controller/admin/BlogController.java. The manipulation leads to cross site scripting. It is possibl…
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Low 3.5
code-projects Online Book Shop subcat.php cross site scripting
A vulnerability, which was classified as problematic, has been found in code-projects Online Book Shop 1.0. Affected by this issue is some unknown functionality of the file /subcat.php. The manipulation of the argument catnm leads to cross site scripting. The…
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Low 3.5
code-projects Online Book Shop booklist.php cross site scripting
A vulnerability was found in code-projects Online Book Shop 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /booklist.php?subcatid=1. The manipulation of the argument subcatnm leads to cross site scripting. …
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Low 2.4
ZeroWdd studentmanager PermissionController. java submitAddPermission cross site scripting
A vulnerability was found in ZeroWdd studentmanager 1.0. It has been rated as problematic. This issue affects the function submitAddPermission of the file src/main/java/com/zero/system/controller/PermissionController. java. The manipulation of the argument ur…
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Low 2.4
ZeroWdd studentmanager RoleController. java submitAddRole cross site scripting
A vulnerability was found in ZeroWdd studentmanager 1.0. It has been declared as problematic. This vulnerability affects the function submitAddRole of the file src/main/java/com/zero/system/controller/RoleController. java. The manipulation of the argument nam…
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Low 2.4
code-projects Local Storage Todo App index.html cross site scripting
A vulnerability has been found in code-projects Local Storage Todo App 1.0 and classified as problematic. This vulnerability affects unknown code of the file /js-todo-app/index.html. The manipulation of the argument Add leads to cross site scripting. The atta…
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Low 3.5
osuuu LightPicture SVG File Upload upload cross site scripting
A vulnerability classified as problematic was found in osuuu LightPicture up to 1.2.2. This vulnerability affects unknown code of the file /api/upload of the component SVG File Upload Handler. The manipulation of the argument file leads to cross site scriptin…
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Low 2.4
Trimble SPS851 Ethernet Configuration Menu cross site scripting
A vulnerability, which was classified as problematic, was found in Trimble SPS851 488.01. This affects an unknown part of the component Ethernet Configuration Menu. The manipulation of the argument Hostname leads to cross site scripting. It is possible to ini…
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Low 3.5
Emlog Pro Cover Upload article.php cross site scripting
A vulnerability classified as problematic has been found in Emlog Pro up to 2.4.3. Affected is an unknown function of the file /admin/article.php?action=upload_cover of the component Cover Upload Handler. The manipulation of the argument image leads to cross …
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Low 2.4
wangl1989 mysiteforme SiteController RestResponse cross site scripting
A vulnerability was found in wangl1989 mysiteforme 1.0. It has been classified as problematic. This affects the function RestResponse of the file src/main/java/com/mysiteforme/admin/controller/system/SiteController. The manipulation leads to cross site script…
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Low 3.5
Emlog Pro Subpage twitter.php cross site scripting
A vulnerability has been found in Emlog Pro 2.4.3 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/twitter.php of the component Subpage Handler. The manipulation leads to cross site scripting. The at…
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Low 2.4
Trimble SPS851 Receiver Status Identity Tab cross site scripting
A vulnerability, which was classified as problematic, has been found in Trimble SPS851 488.01. Affected by this issue is some unknown functionality of the component Receiver Status Identity Tab. The manipulation of the argument System Name leads to cross site…
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Low 3.5
Emlog Pro Subpage article.php cross site scripting
A vulnerability classified as problematic was found in Emlog Pro up to 2.4.3. This vulnerability affects unknown code of the file /admin/article.php of the component Subpage Handler. The manipulation leads to cross site scripting. The attack can be initiated …
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Low 3.5
code-projects Online Shop view.php cross site scripting
A vulnerability was found in code-projects Online Shop 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file /view.php. The manipulation of the argument name/details leads to cross site scripting. The attack can be init…
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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
PHPGurukul Land Record System admin-profile.php cross site scripting
A vulnerability classified as problematic has been found in PHPGurukul Land Record System 1.0. Affected is an unknown function of the file /admin/admin-profile.php. The manipulation of the argument Admin Name leads to cross site scripting. It is possible to l…
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Low 3.5
PHPGurukul Land Record System search-property.php cross site scripting
A vulnerability was found in PHPGurukul Land Record System 1.0. It has been rated as problematic. This issue affects some unknown processing of the file /admin/search-property.php. The manipulation of the argument Search By leads to cross site scripting. The …
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Low 3.5
PHPGurukul Land Record System contactus.php cross site scripting
A vulnerability was found in PHPGurukul Land Record System 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file /admin/contactus.php. The manipulation of the argument Page Description leads to cross site scripting. The…
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Low 3.5
PHPGurukul Land Record System aboutus.php cross site scripting
A vulnerability was found in PHPGurukul Land Record System 1.0. It has been classified as problematic. This affects an unknown part of the file /admin/aboutus.php. The manipulation of the argument Page Description leads to cross site scripting. It is possible…
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Low 3.5
PHPGurukul Land Record System add-property.php cross site scripting
A vulnerability, which was classified as problematic, was found in PHPGurukul Land Record System 1.0. Affected is an unknown function of the file /admin/add-property.php. The manipulation of the argument Land Subtype leads to cross site scripting. It is possi…
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Low 3.5
PHPGurukul Land Record System edit-propertytype.php cross site scripting
A vulnerability, which was classified as problematic, has been found in PHPGurukul Land Record System 1.0. This issue affects some unknown processing of the file /admin/edit-propertytype.php. The manipulation of the argument Property Type leads to cross site …
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Low 3.5
PHPGurukul Land Record System add-propertytype.php cross site scripting
A vulnerability classified as problematic was found in PHPGurukul Land Record System 1.0. This vulnerability affects unknown code of the file /admin/add-propertytype.php. The manipulation of the argument Land Property Type leads to cross site scripting. The a…
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Low 3.5
PHPGurukul Land Record System index.php cross site scripting
A vulnerability classified as problematic has been found in PHPGurukul Land Record System 1.0. This affects an unknown part of the file /index.php. The manipulation of the argument searchdata leads to cross site scripting. It is possible to initiate the attac…
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Low 3.5
SourceCodester Multi Role Login System add-user.php cross site scripting
A vulnerability was found in SourceCodester Multi Role Login System 1.0. It has been classified as problematic. Affected is an unknown function of the file /endpoint/add-user.php. The manipulation of the argument name leads to cross site scripting. It is poss…
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Low 3.5
code-projects Chat System update_user.php cross site scripting
A vulnerability, which was classified as problematic, was found in code-projects Chat System 1.0. This affects an unknown part of the file /admin/update_user.php. The manipulation of the argument name leads to cross site scripting. It is possible to initiate …
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Low 3.5
code-projects Chat System chatroom.php cross site scripting
A vulnerability, which was classified as problematic, has been found in code-projects Chat System 1.0. Affected by this issue is some unknown functionality of the file /admin/chatroom.php. The manipulation of the argument id leads to cross site scripting. The…
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Low 2.4
Antabot White-Jotter Article Content Editor editor cross site scripting
A vulnerability classified as problematic has been found in Antabot White-Jotter up to 0.2.2. Affected is an unknown function of the file /admin/content/editor of the component Article Content Editor. The manipulation leads to cross site scripting. It is poss…
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Low 2.4
PHPGurukul Maid Hiring Management System Search Maid Page search-maid.php cross site scripting
A vulnerability has been found in PHPGurukul Maid Hiring Management System 1.0 and classified as problematic. This vulnerability affects unknown code of the file /admin/search-maid.php of the component Search Maid Page. The manipulation of the argument search…
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Low 3.5
SourceCodester Road Accident Map Marker add-mark.php cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Road Accident Map Marker 1.0. Affected by this issue is some unknown functionality of the file /endpoint/add-mark.php. The manipulation of the argument mark_name/details le…
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Low 3.5
code-projects Chat System Chat Room Page update_room.php cross site scripting
A vulnerability classified as problematic has been found in code-projects Chat System 1.0. Affected is an unknown function of the file /admin/update_room.php of the component Chat Room Page. The manipulation of the argument name leads to cross site scripting.…
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Low 2.4
PHPGurukul Maid Hiring Management System profile.php cross site scripting
A vulnerability was found in PHPGurukul Maid Hiring Management System 1.0. It has been rated as problematic. This issue affects some unknown processing of the file /admin/profile.php. The manipulation of the argument name leads to cross site scripting. The at…
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Low 2.4
PHPGurukul Maid Hiring Management System About Us Page aboutus.php cross site scripting
A vulnerability was found in PHPGurukul Maid Hiring Management System 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file /admin/aboutus.php of the component About Us Page. The manipulation of the argument title leads…
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Low 2.4
PHPGurukul Maid Hiring Management System search-booking-request.php cross site scripting
A vulnerability was found in PHPGurukul Maid Hiring Management System 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /admin/search-booking-request.php. The manipulation of the argument searchdata leads to c…
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Low 2.4
PHPGurukul Maid Hiring Management System Contact Us Page contactus.php cross site scripting
A vulnerability, which was classified as problematic, was found in PHPGurukul Maid Hiring Management System 1.0. Affected is an unknown function of the file /admin/contactus.php of the component Contact Us Page. The manipulation of the argument page title lea…
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Low 3.5
code-projects Hostel Management System registration.php cross site scripting
A vulnerability, which was classified as problematic, has been found in code-projects Hostel Management System 1.0. This issue affects some unknown processing of the file /admin/registration.php. The manipulation of the argument fname/mname/lname leads to cro…