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
Guangdong Pythagorean OA Office System Schedule cross site scripting
A vulnerability has been found in Guangdong Pythagorean OA Office System up to 4.50.31 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Schedule Handler. The manipulation of the argument description le…
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Low 3.5
sea75300 FanPress CM Template Preview templatepreview.php getArticlesPreview cross site scripting
A vulnerability was found in sea75300 FanPress CM up to 3.6.3. It has been classified as problematic. This affects the function getArticlesPreview of the file inc/controller/action/system/templatepreview.php of the component Template Preview. The manipulation…
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Low 3.5
Stars Alliance PsychoStats login.php cross site scripting
A vulnerability classified as problematic has been found in Stars Alliance PsychoStats up to 3.2.2a. This affects an unknown part of the file upload/admin/login.php. The manipulation of the argument ref leads to cross site scripting. It is possible to initiat…
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Low 3.5
yiwent Vip Video Analysis admincore.php cross site scripting
A vulnerability was found in yiwent Vip Video Analysis 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file admin/admincore.php. The manipulation leads to cross site scripting. The attack may be launched remotely…
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Low 3.5
BeipyVideoResolution admincore.php cross site scripting
A vulnerability, which was classified as problematic, was found in BeipyVideoResolution up to 2.6. Affected is an unknown function of the file admin/admincore.php. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. T…
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Low 3.5
SourceCodester Local Service Search Engine Management System POST Parameter cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Local Service Search Engine Management System 1.0. This affects an unknown part of the file /admin/ajax.php?action=save_area of the component POST Parameter Handler. The manipul…
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Low 3.5
Simplr Registration Form Plus+ Plugin cross site scripting
A vulnerability was found in Simplr Registration Form Plus+ Plugin up to 2.3.4 on WordPress and classified as problematic. This issue affects some unknown processing. The manipulation leads to cross site scripting. The attack may be initiated remotely. Upgrad…
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Low 2.4
BestWebSoft Twitter Plugin twitter.php twttr_settings_page cross site scripting
A vulnerability was found in BestWebSoft Twitter Plugin up to 1.3.2 on WordPress. It has been declared as problematic. Affected by this vulnerability is the function twttr_settings_page of the file twitter.php. The manipulation of the argument twttr_url_twitt…
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Low 2.4
SourceCodester Students Online Internship Timesheet Syste cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Students Online Internship Timesheet Syste 1.0. Affected by this issue is some unknown functionality of the file /ajax.php?action=save_company. The manipulation of the argu…
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Low 2.4
Webkul krayin crm Edit Person Page 2 cross site scripting
A vulnerability, which was classified as problematic, was found in Webkul krayin crm 1.2.4. This affects an unknown part of the file /admin/contacts/organizations/edit/2 of the component Edit Person Page. The manipulation of the argument Organization leads to…
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Low 3.5
SourceCodester Comment System GET Parameter index.php cross site scripting
A vulnerability classified as problematic has been found in SourceCodester Comment System 1.0. Affected is an unknown function of the file index.php of the component GET Parameter Handler. The manipulation of the argument msg leads to cross site scripting. It…
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Low 3.7
CraftCMS stored XSS in Quick Post widget error message
Craft is a CMS for creating custom digital experiences on the web.The platform does not filter input and encode output in Quick Post validation error message, which can deliver an XSS payload. Old CVE fixed the XSS in label HTML but didn’t fix it when clickin…
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Low 3.5
SourceCodester Online Jewelry Store POST Parameter customer.php cross site scripting
A vulnerability was found in SourceCodester Online Jewelry Store 1.0 and classified as problematic. Affected by this issue is some unknown functionality of the file customer.php of the component POST Parameter Handler. The manipulation of the argument Custid …
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Low 3.5
SiteServer CMS search cross site scripting
A vulnerability, which was classified as problematic, was found in SiteServer CMS up to 7.2.1. Affected is an unknown function of the file /api/stl/actions/search. The manipulation of the argument ajaxDivId leads to cross site scripting. It is possible to lau…
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Low 3.5
SourceCodester Class Scheduling System POST Parameter search_teacher_result.php cross site scripting
A vulnerability has been found in SourceCodester Class Scheduling System 1.0 and classified as problematic. This vulnerability affects unknown code of the file search_teacher_result.php of the component POST Parameter Handler. The manipulation of the argument…
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Low 3.5
SourceCodester Dental Clinic Appointment Reservation System POST Parameter service.php cross site scripting
A vulnerability was found in SourceCodester Dental Clinic Appointment Reservation System 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /admin/service.php of the component POST Parameter Handler. The ma…
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Low 3.5
SourceCodester Class Scheduling System POST Parameter save_teacher.php cross site scripting
A vulnerability classified as problematic has been found in SourceCodester Class Scheduling System 1.0. Affected is an unknown function of the file /admin/save_teacher.php of the component POST Parameter Handler. The manipulation of the argument Academic_Rank…
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Low 3.5
Sucms cross site scripting
A vulnerability was found in Sucms 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file admin_ads.php?action=add. The manipulation of the argument intro leads to cross site scripting. The attack may be launch…
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Low 3.5
SourceCodester Guest Management System GET Parameter dateTest.php cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Guest Management System 1.0. Affected by this issue is some unknown functionality of the file dateTest.php of the component GET Parameter Handler. The manipulation of the a…
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Low 3.5
SourceCodester ICT Laboratory Management System GET Parameter room_info.php cross site scripting
A vulnerability has been found in SourceCodester ICT Laboratory Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file views/room_info.php of the component GET Parameter Handler. The manipul…
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Low 3.5
SourceCodester Personnel Property Equipment System POST Parameter add_item.php cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Personnel Property Equipment System 1.0. Affected is an unknown function of the file admin/add_item.php of the component POST Parameter Handler. The manipulation of the argument…
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Low 3.5
SourceCodester File Tracker Manager System POST Parameter save_user.php cross site scripting
A vulnerability has been found in SourceCodester File Tracker Manager System 1.0 and classified as problematic. This vulnerability affects unknown code of the file /file_manager/admin/save_user.php of the component POST Parameter Handler. The manipulation of …
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Low 3.5
SourceCodester Lost and Found Information System Contact Form cross site scripting
A vulnerability was found in SourceCodester Lost and Found Information System 1.0. It has been rated as problematic. This issue affects some unknown processing of the file classes/Master.php?f=save_inquiry of the component Contact Form. The manipulation of th…
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Low 3.5
SourceCodester Lost and Found Information System cross site scripting
A vulnerability has been found in SourceCodester Lost and Found Information System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file admin/. The manipulation of the argument page leads to cross site scri…
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Low 3.5
SourceCodester Online Computer and Laptop Store products.php cross site scripting
A vulnerability classified as problematic was found in SourceCodester Online Computer and Laptop Store 1.0. Affected by this vulnerability is an unknown functionality of the file products.php. The manipulation of the argument search leads to cross site script…
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Low 3.4
WordPress Export All URLs Plugin <= 4.1 is vulnerable to Cross Site Scripting (XSS)
Auth. (editor+) Stored Cross-Site Scripting (XSS) vulnerability in Atlas Gondal Export All URLs plugin <= 4.1 versions.
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Low 3.5
SourceCodester Multi Language Hotel Management Software POST Parameter ajax.php cross site scripting
A vulnerability has been found in SourceCodester Multi Language Hotel Management Software 1.0 and classified as problematic. This vulnerability affects unknown code of the file ajax.php of the component POST Parameter Handler. The manipulation of the argument…
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Low 3.5
jja8 NewBingGoGo cross site scripting
A vulnerability was found in jja8 NewBingGoGo up to 2023.5.5.2. It has been rated as problematic. This issue affects some unknown processing. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed …
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Low 3.5
External Media without Import Plugin external-media-without-import.php print_media_new_panel cross site scripting
A vulnerability was found in External Media without Import Plugin up to 1.0.0 on WordPress. It has been declared as problematic. This vulnerability affects the function print_media_new_panel of the file external-media-without-import.php. The manipulation of t…
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Low 3.5
NEXTU NEXT-7004N POST Request formFilter cross site scripting
A vulnerability was found in NEXTU NEXT-7004N 3.0.1. It has been classified as problematic. Affected is an unknown function of the file /boafrm/formFilter of the component POST Request Handler. The manipulation of the argument url with the input <svg onload=a…
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Low 3.5
Funadmin Cx.php tagLoad cross site scripting
A vulnerability was found in Funadmin up to 3.2.3. It has been declared as problematic. Affected by this vulnerability is the function tagLoad of the file Cx.php. The manipulation of the argument file leads to cross site scripting. The attack can be launched …
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Low 3.5
Dromara J2eeFAST Announcement cross site scripting
A vulnerability was found in Dromara J2eeFAST up to 2.6.0. It has been classified as problematic. Affected is an unknown function of the component Announcement Handler. The manipulation of the argument 系统工具/公告管理 leads to cross site scripting. It is possible t…
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Low 3.5
Dromara J2eeFAST System Message cross site scripting
A vulnerability was found in Dromara J2eeFAST up to 2.6.0 and classified as problematic. This issue affects some unknown processing of the component System Message Handler. The manipulation of the argument 主题 leads to cross site scripting. The attack may be i…
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Low 3.5
BestWebSoft Job Board Plugin cross site scripting
A vulnerability classified as problematic was found in BestWebSoft Job Board Plugin 1.0.0 on WordPress. This vulnerability affects unknown code. The manipulation leads to cross site scripting. The attack can be initiated remotely. Upgrading to version 1.0.1 i…
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Low 3.5
Mail Subscribe List Plugin index.php cross site scripting
A vulnerability, which was classified as problematic, has been found in Mail Subscribe List Plugin up to 2.0.10 on WordPress. This issue affects some unknown processing of the file index.php. The manipulation of the argument sml_name/sml_email leads to cross …
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Low 2.4
Responsive Menus Configuration Setting responsive_menus.module responsive_menus_admin_form_submit cross site scripting
A vulnerability classified as problematic was found in Responsive Menus 7.x-1.x-dev on Drupal. Affected by this vulnerability is the function responsive_menus_admin_form_submit of the file responsive_menus.module of the component Configuration Setting Handler…
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Low 2.4
SourceCodester Simple Student Information System Add New Course cross site scripting
A vulnerability was found in SourceCodester Simple Student Information System 1.0. It has been classified as problematic. This affects an unknown part of the file /classes/Master.php?f=save_course of the component Add New Course. The manipulation of the argum…
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Low 3.5
Control iD RHiD department cross site scripting
A vulnerability classified as problematic has been found in Control iD RHiD 23.3.19.0. Affected is an unknown function of the file /v2/#/add/department. The manipulation of the argument Name leads to cross site scripting. It is possible to launch the attack r…
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Low 2.4
SourceCodester Simple Mobile Comparison Website cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Simple Mobile Comparison Website 1.0. This issue affects some unknown processing of the file classes/Master.php?f=save_field. The manipulation of the argument Field Name le…
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Low 2.4
Netgear SRX5308 Web Management Interface cross site scripting
A vulnerability was found in Netgear SRX5308 up to 4.3.5-3. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Web Management Interface. The manipulation of the argument wanName leads to cross site scriptin…