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
Catalyst-Plugin-Session Session ID Session.pm _load_sessionid cross site scripting
A vulnerability has been found in Catalyst-Plugin-Session up to 0.40 and classified as problematic. This vulnerability affects the function _load_sessionid of the file lib/Catalyst/Plugin/Session.pm of the component Session ID Handler. The manipulation of the…
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Low 2.4
JmPotato Pomash editor.html cross site scripting
A vulnerability, which was classified as problematic, was found in JmPotato Pomash. This affects an unknown part of the file Pomash/theme/clean/templates/editor.html. The manipulation of the argument article.title/content.title/article.tag leads to cross site…
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Low 3.5
Harvest Chosen abstract-chosen.coffee AbstractChosen cross site scripting
A vulnerability, which was classified as problematic, has been found in Harvest Chosen up to 1.8.6. Affected by this issue is the function AbstractChosen of the file coffee/lib/abstract-chosen.coffee. The manipulation of the argument group_label leads to cros…
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Low 2.4
Nakiami Mellivora Admin Panel user.inc.php print_user_ip_log cross site scripting
A vulnerability classified as problematic was found in Nakiami Mellivora up to 2.1.x. Affected by this vulnerability is the function print_user_ip_log of the file include/layout/user.inc.php of the component Admin Panel. The manipulation of the argument $entr…
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Low 3.5
gnuboard youngcart5 menu_list_update.php cross site scripting
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability classified as problematic has been found in gnuboard youngcart5 up to 5.4.5.1. Affected is an unknown function of the file adm/menu_list_update.php. The manipulation of the argument me_link leads to cross site s…
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Low 3.5
OpenMRS Admin UI Module Account Setup AccountPageController.java sendErrorMessage cross site scripting
A vulnerability classified as problematic has been found in OpenMRS Admin UI Module up to 1.4.x. Affected is the function sendErrorMessage of the file omod/src/main/java/org/openmrs/module/adminui/page/controller/systemadmin/accounts/AccountPageController.jav…
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Low 3.5
OpenMRS Admin UI Module Manage Privilege Page privilege.gsp cross site scripting
A vulnerability was found in OpenMRS Admin UI Module up to 1.4.x. It has been rated as problematic. This issue affects some unknown processing of the file omod/src/main/webapp/pages/metadata/privileges/privilege.gsp of the component Manage Privilege Page. The…
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Low 3.5
OpenMRS Admin UI Module location.gsp cross site scripting
A vulnerability was found in OpenMRS Admin UI Module up to 1.5.x. It has been declared as problematic. This vulnerability affects unknown code of the file omod/src/main/webapp/pages/metadata/locations/location.gsp. The manipulation leads to cross site scripti…
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Low 3.5
OpenMRS Appointment Scheduling Module AppointmentTypeValidator.java validateFieldName cross site scripting
A vulnerability was found in OpenMRS Appointment Scheduling Module up to 1.12.x. It has been classified as problematic. This affects the function validateFieldName of the file api/src/main/java/org/openmrs/module/appointmentscheduling/validator/AppointmentTyp…
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Low 3.5
OpenMRS openmrs-module-referenceapplication User App Page UserAppPageController.java post cross site scripting
A vulnerability classified as problematic was found in OpenMRS openmrs-module-referenceapplication up to 2.11.x. Affected by this vulnerability is the function post of the file omod/src/main/java/org/openmrs/module/referenceapplication/page/controller/UserApp…
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Low 2.6
Indeed Engineering util ViewExportedVariablesServlet.java appendTo cross site scripting
A vulnerability classified as problematic has been found in Indeed Engineering util up to 1.0.33. Affected is the function visit/appendTo of the file varexport/src/main/java/com/indeed/util/varexport/servlet/ViewExportedVariablesServlet.java. The manipulation…
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Low 3.5
OpenMRS openmrs-module-referenceapplication userApp.gsp cross site scripting
A vulnerability was found in OpenMRS openmrs-module-referenceapplication up to 2.11.x. It has been rated as problematic. This issue affects some unknown processing of the file omod/src/main/webapp/pages/userApp.gsp. The manipulation leads to cross site script…
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Low 3.5
FreePBX arimanager Views cross site scripting
A vulnerability was found in FreePBX arimanager up to 13.0.5.3 and classified as problematic. Affected by this issue is some unknown functionality of the component Views Handler. The manipulation of the argument dataurl leads to cross site scripting. The atta…
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Low 3.5
Nagios NCPA tail.html cross site scripting
A vulnerability classified as problematic was found in Nagios NCPA. This vulnerability affects unknown code of the file agent/listener/templates/tail.html. The manipulation of the argument name leads to cross site scripting. The attack can be initiated remote…
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Low 3.5
OpenMRS HTML Form Entry UI Framework Integration Module cross site scripting
A vulnerability classified as problematic has been found in OpenMRS HTML Form Entry UI Framework Integration Module up to 1.x. This affects an unknown part. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. Upgrad…
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Low 2.4
FreeBPX voicemail Settings ssettings.php cross site scripting
A vulnerability was found in FreeBPX voicemail. It has been rated as problematic. Affected by this issue is some unknown functionality of the file views/ssettings.php of the component Settings Handler. The manipulation of the argument key leads to cross site …
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Low 3.5
FreePBX voicemail page.voicemail.php cross site scripting
A vulnerability was found in FreePBX voicemail. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file page.voicemail.php. The manipulation leads to cross site scripting. The attack can be launched remotely…
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Low 3.5
ytti Oxidized Web conf_search.haml cross site scripting
A vulnerability was found in ytti Oxidized Web. It has been classified as problematic. Affected is an unknown function of the file lib/oxidized/web/views/conf_search.haml. The manipulation of the argument to_research leads to cross site scripting. It is possi…
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Low 3.5
FlatPress Media Manager Plugin panel.mediamanager.file.php main cross site scripting
A vulnerability was found in FlatPress and classified as problematic. This issue affects the function main of the file fp-plugins/mediamanager/panels/panel.mediamanager.file.php of the component Media Manager Plugin. The manipulation of the argument mm-newgal…
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Low 3.5
IET-OU Open Media Player timedtext.php webvtt cross site scripting
A vulnerability was found in IET-OU Open Media Player up to 1.5.0. It has been declared as problematic. This vulnerability affects the function webvtt of the file application/controllers/timedtext.php. The manipulation of the argument ttml_url leads to cross …
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Low 3.5
kkFileView picturesPreview setWatermarkAttribute cross site scripting
A vulnerability, which was classified as problematic, has been found in kkFileView. Affected by this issue is the function setWatermarkAttribute of the file /picturesPreview. The manipulation leads to cross site scripting. The attack may be launched remotely.…
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Low 3.5
Venganzas del Pasado cross site scripting
A vulnerability was found in Venganzas del Pasado and classified as problematic. Affected by this issue is some unknown functionality. The manipulation of the argument the_title leads to cross site scripting. The attack may be launched remotely. The name of t…
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Low 3.5
Hide Files on GitHub options.js addEventListener cross site scripting
A vulnerability, which was classified as problematic, has been found in Hide Files on GitHub up to 2.x. This issue affects the function addEventListener of the file extension/options.js. The manipulation leads to cross site scripting. The attack may be initia…
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Low 3.5
asrashley dash-live DOM Node media.js ready cross site scripting
A vulnerability classified as problematic was found in asrashley dash-live. This vulnerability affects the function ready of the file static/js/media.js of the component DOM Node Handler. The manipulation leads to cross site scripting. The attack can be initi…
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Low 2.4
myapnea Title cross site scripting
A vulnerability, which was classified as problematic, was found in myapnea up to 29.0.x. Affected is an unknown function of the component Title Handler. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to…
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Low 3.5
Graphite Web Cookie cross site scripting
A vulnerability has been found in Graphite Web and classified as problematic. This vulnerability affects unknown code of the component Cookie Handler. The manipulation leads to cross site scripting. The attack can be initiated remotely. The exploit has been d…
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Low 3.5
Graphite Web Absolute Time Range cross site scripting
A vulnerability was found in Graphite Web. It has been classified as problematic. Affected is an unknown function of the component Absolute Time Range Handler. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. The e…
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Low 3.5
Graphite Web Template Name cross site scripting
A vulnerability was found in Graphite Web and classified as problematic. This issue affects some unknown processing of the component Template Name Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has b…
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Low 3.5
ep3-bs cross site scripting
A vulnerability classified as problematic has been found in ep3-bs up to 1.7.x. This affects an unknown part. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 1.8.0 is able to address this is…
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Low 2.7
Cross-site Scripting (XSS) - Reflected in microweber/microweber
Cross-site Scripting (XSS) - Reflected in GitHub repository microweber/microweber prior to 1.3.2.
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Low 3.5
collective.contact.widget widgets.py title cross site scripting
A vulnerability classified as problematic was found in collective.contact.widget up to 1.12. This vulnerability affects the function title of the file src/collective/contact/widget/widgets.py. The manipulation leads to cross site scripting. The attack can be …
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Low 3.5
Auto Upload Images cross site scripting
A vulnerability has been found in Auto Upload Images up to 3.3.0 and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation leads to cross site scripting. The attack can be launched remotely. Upgrading to versi…
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Low 3.5
Mingsoft MCMS Article save cross site scripting
A vulnerability has been found in Mingsoft MCMS 5.2.9 and classified as problematic. Affected by this vulnerability is the function save of the component Article Handler. The manipulation leads to cross site scripting. The attack can be launched remotely. The…
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Low 3.5
leanote history.js define cross site scripting
A vulnerability, which was classified as problematic, has been found in leanote 2.6.1. This issue affects the function define of the file public/js/plugins/history.js. The manipulation of the argument content leads to cross site scripting. The attack may be i…
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Low 3.5
studygolang topics.js cross site scripting
A vulnerability classified as problematic has been found in studygolang. This affects an unknown part of the file static/js/topics.js. The manipulation of the argument contentHtml leads to cross site scripting. It is possible to initiate the attack remotely. …
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Low 2.3
Cross-site Scripting (XSS) - Stored in alagrede/znote-app
Cross-site Scripting (XSS) - Stored in GitHub repository alagrede/znote-app prior to 1.7.11.
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Low 2.4
Boston Sleep slice Layout cross site scripting
A vulnerability, which was classified as problematic, was found in Boston Sleep slice up to 84.1.x. Affected is an unknown function of the component Layout Handler. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. …
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Low 3.5
Joget wflow-core UniversalTheme.java getInternalJsCssLib cross site scripting
A vulnerability was found in Joget up to 7.0.31. It has been rated as problematic. This issue affects the function getInternalJsCssLib of the file wflow-core/src/main/java/org/joget/plugin/enterprise/UniversalTheme.java of the component wflow-core. The manipu…
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Low 2.0
HCL Digital Experience is susceptible to cross-site scripting (XSS)
In HCL Digital Experience, customized XSS payload can be constructed such that it is served in the application unencoded.
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Low 3.5
collective.task table.py AssignedGroupColumn cross site scripting
A vulnerability was found in collective.task up to 3.0.8. It has been classified as problematic. This affects the function renderCell/AssignedGroupColumn of the file src/collective/task/browser/table.py. The manipulation leads to cross site scripting. It is p…