DOMPurify's ADD_TAGS function form bypasses FORBID_TAGS due to short-circuit evaluation

Summary In src/purify.ts:1117-1123, ADDTAGS as a function via EXTRAELEMENTHANDLING.tagCheck bypasses FORBIDTAGS due to short-circuit evaluation. The condition: !tagChecktagName && !ALLOWEDTAGStagName || FORBIDTAGStagName When tagChecktagName returns true, the entire condition is false and the...

PT-2026-63989

Name of the Vulnerable Software and Affected Versions DOMPurify versions prior to 3.4.0 Description A logic error exists in the ADD TAGS function where short-circuit evaluation allows tags listed in FORBID TAGS to bypass restrictions. This occurs when tags are simultaneously listed in both FORBID...

XSS (Cross Site Scripting) dompurify Dependency in Bamboo Data Center

This High severity XSS Cross Site Scripting vulnerability was introduced in versions 10.0.1, 10.2.15, 12.0.0 and 12.1.2 of Bamboo Data Center. This XSS Cross Site Scripting vulnerability, with a CVSS Score of 7.3 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L allows an...

Security Bulletin: IBM App Connect Enterprise Certified Container DesignerAuthoring operands are vulnerable to cross-site-scripting (CVE-2025-15599, CVE-2026-0540) and loss of confidentiality (CVE-2025-68470, CVE-2026-22029)

Summary Node.js modules DomPurify and React Router are used by IBM App Connect Enterprise Certified Container. IBM App Connect Enterprise Certified Container DesignerAuthoring operands are vulnerable to cross-site-scripting CVE-2025-15599, CVE-2026-0540 and loss of confidentiality CVE-2025-68470,...

Security Bulletin: DevOps Test Performance contains a vulnerability related to use of the DOMPurify library

Summary Due to the use of the DOMPurify library, DevOps Test Performance and Rational Performance Tester contain a cross-site scripting XSS vulnerability CVE-2025-15599, CVE-2026-0540 Vulnerability Details CVEID:CVE-2025-15599 DESCRIPTION: DOMPurify 3.1.3 through 3.2.6 and 2.5.3 through 2.5.8...

Security Bulletin: SPSS Collaboration and Deployment Services is affected by vulnerabilities in DOMPurify (CVE-2025-15599, CVE-2026-0540)

Summary SPSS Collaboration and Deployment Services is affected by vulnerabilities in DOMPurify CVE-2025-15599, CVE-2026-0540. This has been addressed in the remediation section. Vulnerability Details CVEID:CVE-2025-15599 DESCRIPTION: DOMPurify 3.1.3 through 3.2.6 and 2.5.3 through 2.5.8 contain a...

GHSA-CJMM-F4JC-QW8R DOMPurify ADD_ATTR predicate skips URI validation

Summary DOMPurify allows ADDATTR to be provided as a predicate function via EXTRAELEMENTHANDLING.attributeCheck. When the predicate returns true, isValidAttribute short-circuits the attribute check before URI-safe validation runs. An attacker who supplies a predicate that accepts specific...

Permissive List of Allowed Inputs

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Permissive List of Allowed Inputs in the ADDATTR predicate function via EXTRAELEMENTHANDLING.attributeCheck. An attacker can inject and execute malicious...

Permissive List of Allowed Inputs

Overview dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Permissive List of Allowed Inputs in the ADDATTR predicate function via EXTRAELEMENTHANDLING.attributeCheck. An attacker can inject and execute malicious scripts in the DOM...

DOMPurify ADD_ATTR predicate skips URI validation

Summary DOMPurify allows ADDATTR to be provided as a predicate function via EXTRAELEMENTHANDLING.attributeCheck. When the predicate returns true, isValidAttribute short-circuits the attribute check before URI-safe validation runs. An attacker who supplies a predicate that accepts specific...

Prototype Pollution

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Prototype Pollution in the USEPROFILES function. An attacker can execute arbitrary JavaScript code in the context of the user’s browser by polluting...

DOMPurify USE_PROFILES prototype pollution allows event handlers

Summary When USEPROFILES is enabled, DOMPurify rebuilds ALLOWEDATTR as a plain array before populating it with the requested allowlists. Because the sanitizer still looks up attributes via ALLOWEDATTRlcName, any Array.prototype property that is polluted also counts as an allowlisted attribute. An...

GHSA-CJ63-JHHR-WCXV DOMPurify USE_PROFILES prototype pollution allows event handlers

Summary When USEPROFILES is enabled, DOMPurify rebuilds ALLOWEDATTR as a plain array before populating it with the requested allowlists. Because the sanitizer still looks up attributes via ALLOWEDATTRlcName, any Array.prototype property that is polluted also counts as an allowlisted attribute. An...

PT-2026-63992

Name of the Vulnerable Software and Affected Versions DOMPurify versions prior to 3.3.2 Description A URI validation bypass occurs when ADD ATTR is used as a predicate function through EXTRA ELEMENT HANDLING.attributeCheck. This allows attackers to provide a predicate that accepts specific...

Trix is vulnerable to XSS through JSON deserialization bypass in drag-and-drop (Level0InputController)

Impact The Trix editor, in versions prior to 2.1.18, is vulnerable to XSS when a crafted application/x-trix-document JSON payload is dropped into the editor in environments using the fallback Level0InputController e.g., embedded WebViews lacking Input Events Level 2 support. The...

Cross-site Scripting (XSS)

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Cross-site Scripting XSS when sanitized HTML is reinserted into a new parsing context using innerHTML and special wrappers such as script, xmp, iframe,...

Cross-site Scripting (XSS)

Overview dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Cross-site Scripting XSS when sanitized HTML is reinserted into a new parsing context using innerHTML and special wrappers such as script, xmp, iframe, noembed, noframes, o...

GHSA-H8R8-WCCR-V5F2 DOMPurify is vulnerable to mutation-XSS via Re-Contextualization

Description A mutation-XSS mXSS condition was confirmed when sanitized HTML is reinserted into a new parsing context using innerHTML and special wrappers. The vulnerable wrappers confirmed in browser behavior are script, xmp, iframe, noembed, noframes, and noscript. The payload remains seemingly...

CVE-2026-31833

Umbraco is an ASP.NET CMS. From 16.2.0 to before 16.5.1 and 17.2.2, An authenticated backoffice user with access to Settings can inject malicious HTML into property type descriptions. Due to an overly permissive attributeNameCheck configuration /.+/ in the UFM DOMPurify instance, event handler...

EUVD-2026-12105

AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. In 1.11.1 and earlier, AnythingLLM Desktop contains a Streaming Phase XSS vulnerability in the chat rendering pipeline that escalates to Remote Code Execution on the host OS...