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
ruifang-tech Rebuild Project Tasks Section tasks cross site scripting
A vulnerability classified as problematic has been found in ruifang-tech Rebuild 3.8.6. This affects an unknown part of the file /project/050-9000000000000001/tasks of the component Project Tasks Section. The manipulation of the argument description leads to …
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Low 3.5
Beijing Longda Jushang Technology DBShop商城系统 home-order cross site scripting
A vulnerability was found in Beijing Longda Jushang Technology DBShop商城系统 3.3 Release 231225. It has been declared as problematic. This vulnerability affects unknown code of the file /home-order. The manipulation of the argument orderStatus with the input %22…
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Low 2.4
code-projects Hospital Management System Edit Doctor Details Page manage-doctors.php cross site scripting
A vulnerability classified as problematic has been found in code-projects Hospital Management System 1.0. This affects an unknown part of the file /hospital/hms/admin/manage-doctors.php of the component Edit Doctor Details Page. The manipulation of the argume…
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Low 2.4
PHPGurukul Blood Bank & Donor Management System update-contactinfo.php cross site scripting
A vulnerability was found in PHPGurukul Blood Bank & Donor Management System 2.4. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /bbdms/admin/update-contactinfo.php. The manipulation of the argument Address …
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Low 3.5
code-projects Simple Admin Panel updateItemController.php cross site scripting
A vulnerability was found in code-projects Simple Admin Panel 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file updateItemController.php. The manipulation of the argument p_name/p_desc leads to cross site …
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Low 3.5
code-projects Simple Admin Panel addSizeController.php cross site scripting
A vulnerability was found in code-projects Simple Admin Panel 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file addSizeController.php. The manipulation of the argument size leads to cross site scr…
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Low 3.5
code-projects Simple Admin Panel addCatController.php cross site scripting
A vulnerability was found in code-projects Simple Admin Panel 1.0 and classified as problematic. This issue affects some unknown processing of the file addCatController.php. The manipulation of the argument c_name leads to cross site scripting. The attack may…
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Low 2.4
Portabilis i-Educar Tipo de Usuário Page 2 cross site scripting
A vulnerability, which was classified as problematic, has been found in Portabilis i-Educar up to 2.9. Affected by this issue is some unknown functionality of the file /usuarios/tipos/2 of the component Tipo de Usuário Page. The manipulation of the argument n…
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Low 3.5
code-projects Online Exam Mastering System sign.php cross site scripting
A vulnerability classified as problematic was found in code-projects Online Exam Mastering System 1.0. Affected by this vulnerability is an unknown functionality of the file /sign.php?q=account.php. The manipulation of the argument name/gender/college leads t…
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Low 3.5
Emlog Pro common.php cross site scripting
A vulnerability classified as problematic was found in Emlog Pro up to 2.4.1. Affected by this vulnerability is an unknown functionality in the library /include/lib/common.php. The manipulation of the argument msg leads to cross site scripting. The attack can…
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Low 3.5
code-projects Hostel Management Site room-details.php cross site scripting
A vulnerability was found in code-projects Hostel Management Site 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file room-details.php. The manipulation leads to cross site scripting. The attack can be initiated remot…
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Low 2.1
phpLDAPadmin: Reflected Cross-Site Scripting in entry_chooser.php
A reflected cross-site scripting (XSS) vulnerability in the 'Entry Chooser' of phpLDAPadmin (version 1.2.1 through the latest version, 1.2.6.7) allows attackers to execute arbitrary JavaScript in the user's browser via the 'element' parameter, which is unsafe…
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Low 3.5
itsourcecode Vehicle Management System billaction.php cross site scripting
A vulnerability was found in itsourcecode Vehicle Management System 1.0 and classified as problematic. This issue affects some unknown processing of the file /billaction.php. The manipulation of the argument extra-cost leads to cross site scripting. The attac…
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Low 3.5
ruifang-tech Rebuild Task Comment Attachment Upload cross site scripting
A vulnerability, which was classified as problematic, was found in ruifang-tech Rebuild 3.8.5. Affected is an unknown function of the component Task Comment Attachment Upload. The manipulation leads to cross site scripting. It is possible to launch the attack…
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Low 3.5
ruifang-tech Rebuild Project Task Comment cross site scripting
A vulnerability, which was classified as problematic, has been found in ruifang-tech Rebuild 3.8.5. This issue affects some unknown processing of the component Project Task Comment Handler. The manipulation leads to cross site scripting. The attack may be ini…
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Low 3.5
ChatBar.tsx in Lumos before 1.0.17 parses raw HTML in Markdown because the markdown-to-jsx package is used without disa…
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Low 3.5
SourceCodester Kortex Lite Advocate Office Management System client_data.php cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Kortex Lite Advocate Office Management System 1.0. Affected by this issue is some unknown functionality of the file /control/client_data.php. The manipulation of the argume…
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Low 2.4
ClassCMS Model Management Page admin cross site scripting
A vulnerability classified as problematic was found in ClassCMS 4.8. Affected by this vulnerability is an unknown functionality of the file /index.php/admin of the component Model Management Page. The manipulation of the argument URL leads to cross site scrip…
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Low 2.0
GHSL-2024-111: Reflected XSS in /home in habitica
Habitica is an open-source habit-building program. Versions prior to 5.28.5 are vulnerable to reflected cross-site scripting. The `register` function in `home.vue` containsa reflected XSS vulnerability due to an incorrect sanitization function. An attacker ca…
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Low 2.3
Possible Content Security Policy bypass in Action Dispatch
Action Pack is a framework for handling and responding to web requests. There is a possible Cross Site Scripting (XSS) vulnerability in the `content_security_policy` helper starting in version 5.2.0 of Action Pack and prior to versions 7.0.8.7, 7.1.5.1, 7.2.2…
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Low 3.5
code-projects Admin Dashboard vendor_management.php cross site scripting
A vulnerability was found in code-projects Admin Dashboard 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file /vendor_management.php. The manipulation of the argument username leads to cross site scripting. The attac…
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Low 3.5
Guizhou Xiaoma Technology jpress Attachment Upload upload AttachmentUtils.isUnSafe cross site scripting
A vulnerability was found in Guizhou Xiaoma Technology jpress 5.1.2. It has been classified as problematic. Affected is the function AttachmentUtils.isUnSafe of the file /commons/attachment/upload of the component Attachment Upload Handler. The manipulation o…
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Low 3.5
Talentera byt_cv_manager cross site scripting
A vulnerability has been found in Talentera up to 20241128 and classified as problematic. This vulnerability affects unknown code of the file /app/control/byt_cv_manager. The manipulation of the argument redirect_url leads to cross site scripting. The attack …
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Low 3.5
code-projects Simple CRUD Functionality index.php cross site scripting
A vulnerability has been found in code-projects Simple CRUD Functionality 1.0 and classified as problematic. This vulnerability affects unknown code of the file /index.php. The manipulation of the argument newtitle/newdescr leads to cross site scripting. The …
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Low 3.5
DedeCMS HTTP POST Request carbuyaction.php RemoveXSS cross site scripting
A vulnerability, which was classified as problematic, was found in DedeCMS 5.7.116. This affects the function RemoveXSS of the file /plus/carbuyaction.php of the component HTTP POST Request Handler. The manipulation leads to cross site scripting. It is possib…
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Low 3.5
DedeCMS soft_add.php cross site scripting
A vulnerability, which was classified as problematic, has been found in DedeCMS 5.7.116. Affected by this issue is some unknown functionality of the file /member/soft_add.php. The manipulation of the argument body leads to cross site scripting. The attack may…
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Low 3.5
DedeCMS SWF File uploads_add.php cross site scripting
A vulnerability classified as problematic was found in DedeCMS 5.7.116. Affected by this vulnerability is an unknown functionality of the file /member/uploads_add.php of the component SWF File Handler. The manipulation of the argument mediatype leads to cross…
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Low 3.5
DedeCMS article_add.php cross site scripting
A vulnerability classified as problematic has been found in DedeCMS 5.7.116. Affected is an unknown function of the file /member/article_add.php. The manipulation of the argument body leads to cross site scripting. It is possible to launch the attack remotely…
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Low 2.3
Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0 and Nokogiri < 1.15.7, or 1.16.x < 1.16.8.…
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Low 2.3
Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0. A possible XSS vulnerability with certain…
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Low 2.3
Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0. A possible XSS vulnerability with certain…
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Low 2.3
Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0. A possible XSS vulnerability with certain…
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Low 2.3
Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0. A possible XSS vulnerability with certain…
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Low 3.5
code-projects Wazifa System Setting updatesettings.php cross site scripting
A vulnerability classified as problematic has been found in code-projects Wazifa System 1.0. Affected is an unknown function of the file /controllers/updatesettings.php of the component Setting Handler. The manipulation of the argument firstname leads to cros…
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Low 3.5
code-projects Blood Bank System Setting updatesettings.php cross site scripting
A vulnerability was found in code-projects Blood Bank System 1.0. It has been rated as problematic. This issue affects some unknown processing of the file /controllers/updatesettings.php of the component Setting Handler. The manipulation of the argument first…
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Low 3.5
code-projects Farmacia vendas.php cross site scripting
A vulnerability was found in code-projects Farmacia 1.0. It has been classified as problematic. This affects an unknown part of the file /vendas.php. The manipulation of the argument notaFiscal leads to cross site scripting. It is possible to initiate the att…
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Low 3.5
code-projects Farmacia editar-fornecedor.php cross site scripting
A vulnerability was found in code-projects Farmacia 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file /editar-fornecedor.php. The manipulation of the argument cidade leads to cross site scripting. The attack m…
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Low 3.5
code-projects Farmacia pagamento.php cross site scripting
A vulnerability has been found in code-projects Farmacia 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /pagamento.php. The manipulation of the argument total leads to cross site scripting. The attack…
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Low 3.5
Guizhou Xiaoma Technology jpress Avatar upload cross site scripting
A vulnerability classified as problematic was found in Guizhou Xiaoma Technology jpress 5.1.2. Affected by this vulnerability is an unknown functionality of the file /commons/attachment/upload of the component Avatar Handler. The manipulation of the argument …
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Low 3.5
Reflected XSS in Setup Wizard, HTTP Proxy credentials pane in spacewalk-web
A Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in the Setup Wizard, HTTP Proxy credentials pane in spacewalk-web allows attackers to attack users by providing specially crafted URLs to click. This i…