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
2,689 results · Clear filters · Feed
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Low 2.4
code-projects Online Student Management System Announcement Management index.php cross site scripting
A weakness has been identified in code-projects Online Student Management System 1.0. The impacted element is an unknown function of the file /admin/announcement/index.php?view=add of the component Announcement Management Module. This manipulation causes cros…
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Low 3.5
cym1102 nginxWebUI Web Management check cross site scripting
A vulnerability was identified in cym1102 nginxWebUI up to 4.3.7. The impacted element is an unknown function of the file /adminPage/conf/check of the component Web Management Interface. Such manipulation of the argument nginxDir leads to cross site scripting…
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Low 3.5
Portabilis i-Educar User Data meusdadod.php cross site scripting
A vulnerability was identified in Portabilis i-Educar up to 2.10. Affected by this vulnerability is an unknown functionality of the file /intranet/meusdadod.php of the component User Data Page. Such manipulation of the argument File leads to cross site script…
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Low 1.1
Zulip affected by Stored XSS in user profile modal
Zulip is an open-source team collaboration tool. From 5.0 to before 11.5, some administrative actions on the user profile were susceptible to stored XSS in group names or channel names. Exploiting these vulnerabilities required the user explicitly interacting…
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Low 3.5
The Asterisk embedded web server 's /httpstatus page echos user supplied values(cookie and query string) without sanitization
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML…
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Low 2.4
Edimax BR-6288ACL wiz_WISP24gmanual.asp wiz_WISP24gmanual cross site scripting
A vulnerability has been found in Edimax BR-6288ACL up to 1.12. Impacted is the function wiz_WISP24gmanual of the file wiz_WISP24gmanual.asp. Such manipulation of the argument manualssid leads to cross site scripting. The attack can be launched remotely. The …
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Low 3.5
P5 FNIP-8x16A/FNIP-4xSH 1.0.20, 1.0.11 - Stored Cross-Site Scripting (XSS)
P5 FNIP-8x16A/FNIP-4xSH versions 1.0.20 and 1.0.11 suffer from a stored cross-site scripting vulnerability. Input passed to several GET/POST parameters is not properly sanitized before being returned to the user, allowing attackers to execute arbitrary HTML a…
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Low 1.1
UserInfoCard is vulnerable to message key stored XSS
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/Services/CheckUserUserInfoCardService.Php. This issue affects …
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Low 2.4
D-Link DSL-6641K sp_pppoe_user.js doSubmitPPP cross site scripting
A vulnerability was found in D-Link DSL-6641K N8.TR069.20131126. Affected by this issue is the function doSubmitPPP of the file sp_pppoe_user.js. The manipulation of the argument Username results in cross site scripting. The attack may be launched remotely. T…
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Low 2.4
D-Link DSL-6641K Web ad_virtual_server_vdsl cross site scripting
A vulnerability was detected in D-Link DSL-6641K N8.TR069.20131126. Affected by this issue is the function ad_virtual_server_vdsl of the component Web Interface. Performing a manipulation of the argument Name results in cross site scripting. It is possible to…
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Low 3.5
projectworlds House Rental and Property Listing sms.php cross site scripting
A weakness has been identified in projectworlds House Rental and Property Listing 1.0. This vulnerability affects unknown code of the file /app/sms.php. This manipulation of the argument Message causes cross site scripting. It is possible to initiate the atta…
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Low 3.5
Bdtask Bhojon All-In-One Restaurant Management System User Information profile cross site scripting
A vulnerability was found in Bdtask Bhojon All-In-One Restaurant Management System up to 20260116. Impacted is an unknown function of the file /dashboard/home/profile of the component User Information Module. Performing a manipulation of the argument fullname…
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Low 2.4
rethinkdb Secondary Index cross site scripting
A vulnerability was identified in rethinkdb up to 2.4.3. Affected by this issue is some unknown functionality of the component Secondary Index Handler. Such manipulation leads to cross site scripting. It is possible to launch the attack remotely. The exploit …
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Low 2.4
iJason-Liu Books_Manager add_book_check.php cross site scripting
A vulnerability has been found in iJason-Liu Books_Manager up to 298ba736387ca37810466349af13a0fdf828e99c. This affects an unknown part of the file controllers/books_center/add_book_check.php. Such manipulation of the argument mark leads to cross site scripti…
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Low 3.5
code-projects Online Examination System Add Pages cross site scripting
A vulnerability has been found in code-projects Online Examination System 1.0. Affected is an unknown function of the component Add Pages. Such manipulation leads to cross site scripting. The attack can be executed remotely. The exploit has been disclosed to …
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Low 3.1
Vulnerability in Oracle Java SE (component: JavaFX). Supported versions that are affected are Oracle Java SE: 8u471-b50…
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Low 2.1
SiYuan Vulnerable to Reflected Cross-Site Scripting (XSS) via /api/icon/getDynamicIcon
SiYuan is a personal knowledge management system. Versions prior to 3.5.4 are vulnerable to reflected cross-site scripting in /api/icon/getDynamicIcon due to unsanitized SVG input. The endpoint generates SVG images for text icons (type=8). The content query p…
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Low 3.5
pbrong hrms recruitment.go UpdateRecruitmentById cross site scripting
A vulnerability was detected in pbrong hrms 1.0.1. The affected element is the function UpdateRecruitmentById of the file /handler/recruitment.go. The manipulation results in cross site scripting. The attack may be launched remotely. The exploit is now public…
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Low 2.4
technical-laohu mpay User Center cross site scripting
A weakness has been identified in technical-laohu mpay up to 1.2.4. The affected element is an unknown function of the component User Center. This manipulation of the argument Nickname causes cross site scripting. The attack may be initiated remotely. The exp…
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Low 3.5
SourceCodester/Patrick Mvuma Patients Waiting Area Queue Management System api_patient_schedule.php cross site scripting
A vulnerability was found in SourceCodester/Patrick Mvuma Patients Waiting Area Queue Management System 1.0. This affects an unknown part of the file /php/api_patient_schedule.php. Performing a manipulation of the argument Reason results in cross site scripti…
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Low 3.5
SourceCodester/Patrick Mvuma Patients Waiting Area Queue Management System api_register_patient.php cross site scripting
A vulnerability has been found in SourceCodester/Patrick Mvuma Patients Waiting Area Queue Management System 1.0. Affected by this issue is some unknown functionality of the file /php/api_register_patient.php. Such manipulation of the argument firstName/lastN…
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Low 3.5
lcg0124 BootDo ContentController save cross site scripting
A weakness has been identified in lcg0124 BootDo up to e93dd428ef6f5c881aa74d49a2099ab0cf1e0fcb. Affected is the function Save of the file /blog/bContent/save of the component ContentController. This manipulation of the argument content/author/title causes cr…
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Low 3.5
LigeroSmart index.pl cross site scripting
A security vulnerability has been detected in LigeroSmart up to 6.1.26. The affected element is an unknown function of the file /otrs/index.pl. Such manipulation of the argument TicketID leads to cross site scripting. It is possible to launch the attack remot…
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Low 3.5
LigeroSmart index.pl cross site scripting
A weakness has been identified in LigeroSmart up to 6.1.26. Impacted is an unknown function of the file /otrs/index.pl?Action=AgentTicketZoom. This manipulation of the argument TicketID causes cross site scripting. It is possible to initiate the attack remote…
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Low —
solspace/craft-freeform Vulnerable to XSS in `PhpSpreadsheet` HTML Writer Due to Unsanitized Styling Data
### Summary _Short summary of the problem. Make the impact and severity as clear as possible. For example: An unsafe deserialization vulnerability allows any unauthenticated user to execute arbitrary code on the server._ \PhpOffice\PhpSpreadsheet\Writer\Html …
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Low 3.8
An attacker with administrative access may inject malicious content into the login page, potentially enabling cross-sit…
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Low 1.3
Frappe LMS has a Stored XSS via Unsanitized Image Filename in Course and Jobs Pages
Frappe Learning Management System (LMS) is a learning system that helps users structure their content. In 2.44.0 and earlier, there is a stored XSS vulnerability where a specially crafted image filename could execute malicious JavaScript when rendered on cour…
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Low 2.4
Luxul XWR-600 Web Administration cross site scripting
A vulnerability was found in Luxul XWR-600 up to 4.0.1. The affected element is an unknown function of the component Web Administration Interface. The manipulation of the argument Guest Network/Wireless Profile SSID results in cross site scripting. The attack…
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Low 3.5
questdb ui Web Console cross site scripting
A security flaw has been discovered in questdb ui up to 1.11.9. Impacted is an unknown function of the component Web Console. The manipulation results in cross site scripting. The attack can be executed remotely. The exploit has been released to the public an…
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Low 2.3
Stored XSS through edit summaries in GrowthExperiments
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - GrowthExperiments Ex…
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Low 2.3
i18n XSS, DoS and config SQLI in Monaco
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - Monaco Skin allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Monaco Skin: 1.45, 1.44, 1.43, 1.39.
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Low 2.3
Stored XSS through autocomment system messages in Wikibase
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Wikibase Extension: 1.45, 1.4…
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Low 2.4
PHPGurukul Staff Leave Management System SVG File adminviews.py UPDATE_STAFF cross site scripting
A flaw has been found in PHPGurukul Staff Leave Management System 1.0. The affected element is the function ADD_STAFF/UPDATE_STAFF of the file /staffleave/slms/slms/adminviews.py of the component SVG File Handler. Executing a manipulation of the argument prof…
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Low 1.8
Stored Cross-Site Scripting
The Report Builder component of the application stores user input directly in a web page and displays it to other users, which raised concerns about a possible Cross-Site Scripting (XSS) attack. Proper management of this functionality helps ensure a secure an…
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Low 2.4
projectworlds House Rental and Property Listing complaint.php cross site scripting
A vulnerability was detected in projectworlds House Rental and Property Listing 1.0. This issue affects some unknown processing of the file /app/complaint.php. The manipulation of the argument Name results in cross site scripting. The attack may be launched r…
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Low 3.5
Xinhu Rainrock RockOA API rockfun.php cross site scripting
A weakness has been identified in Xinhu Rainrock RockOA up to 2.7.1. Affected by this vulnerability is an unknown functionality of the file rockfun.php of the component API. This manipulation of the argument callback causes cross site scripting. The attack ma…
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Low 3.5
Xinhu Rainrock RockOA Cover Image rock_page_gong.php cross site scripting
A security flaw has been discovered in Xinhu Rainrock RockOA up to 2.7.1. Affected is an unknown function of the file rock_page_gong.php of the component Cover Image Handler. The manipulation of the argument fengmian results in cross site scripting. The attac…
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Low 3.5
SourceCodester API Key Manager App Import Key cross site scripting
A vulnerability was found in SourceCodester API Key Manager App 1.0. Affected by this vulnerability is an unknown functionality of the component Import Key Handler. Performing a manipulation results in cross site scripting. The attack can be initiated remotel…
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Low 3.1
zhanglun lettura RSS ContentRender.tsx cross site scripting
A vulnerability was detected in zhanglun lettura up to 0.1.22. This issue affects some unknown processing of the file src/components/ArticleView/ContentRender.tsx of the component RSS Handler. The manipulation results in cross site scripting. The attack can b…
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Low 2.4
xnx3 wangmarket Backend Variable Search variableList.do variableList cross site scripting
A weakness has been identified in xnx3 wangmarket up to 4.9. This affects the function variableList of the file /admin/system/variableList.do of the component Backend Variable Search. Executing a manipulation of the argument Description can lead to cross site…