43 matches found
CVE-2026-65903
A flaw was found in DOMPurify. A logic error in the ADDTAGS function allows an attacker to bypass security restrictions. By crafting specific input, an attacker can cause tags that should be removed to remain in the sanitized output. This could lead to the injection of malicious content,...
UBUNTU-CVE-2026-65903
DOMPurify before 3.4.0 contains a logic error in the ADDTAGS function...
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 via the sanitize process. An attacker can execute arbitrary scripts in the context of the user’s browser by leveraging persistent function predicat...
CVE-2026-65911
CVE-2026-65911 concerns DOMPurify up to version 3.3.3. Predicates supplied via ADD_ATTR or ADD_TAGS to DOMPurify.sanitize() can persist in internal state (EXTRA_ELEMENT_HANDLING) across sanitize() calls on the same instance. If a subsequent call passes ADD_ATTR/ADD_TAGS as an array instead of a f...
CVE-2026-65911 DOMPurify before 3.4.0 XSS via ADD_ATTR/ADD_TAGS State Leakage
In DOMPurify through 3.3.3, function predicates supplied via ADDATTR or ADDTAGS to DOMPurify.sanitize persist in internal state EXTRAELEMENTHANDLING across subsequent sanitize calls on the same instance. If a later call on the same instance provides ADDATTR or ADDTAGS as an array rather than a...
CVE-2026-65903 DOMPurify before 3.4.0 ADD_TAGS Function Bypasses FORBID_TAGS
DOMPurify before 3.4.0 contains a logic error in the ADDTAGS function where short-circuit evaluation allows forbidden tags to bypass FORBIDTAGS restrictions. Attackers can craft input containing tags listed in FORBIDTAGS that are also added via ADDTAGS function, causing them to be retained in...
CVE-2026-65903
DOMPurify before 3.4.0 contains a logic error in ADD_TAGS where short-circuit evaluation lets forbidden tags bypass FORBID_TAGS. Attackers can craft input containing tags listed in FORBID_TAGS that are also added via ADD_TAGS, causing those tags to be retained in the sanitized output. Affected: D...
CVE-2026-65903
DOMPurify before 3.4.0 contains a logic error in the ADDTAGS function where short-circuit evaluation allows forbidden tags to bypass FORBIDTAGS restrictions. Attackers can craft input containing tags listed in FORBIDTAGS that are also added via ADDTAGS function, causing them to be retained in...
PT-2026-63989
DOMPurify before 3.4.0 contains a logic error in the ADD TAGS function where short-circuit evaluation allows forbidden tags to bypass FORBID TAGS restrictions. Attackers can craft input containing tags listed in FORBID TAGS that are also added via ADD TAGS function, causing them to be retained in...
SUSE CVE-2026-41240
DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions prior to 3.4.0 have an inconsistency between FORBIDTAGS and FORBIDATTR handling when function-based ADDTAGS is used. Commit c361baa added an early exit for FORBIDATTR at line 1214. The same fix was not...
CVE-2026-41240
DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions prior to 3.4.0 have an inconsistency between FORBIDTAGS and FORBIDATTR handling when function-based ADDTAGS is used. Commit c361baa added an early exit for FORBIDATTR at line 1214. The same fix was not...
CVE-2026-41240 DOMPurify: FORBID_TAGS bypassed by function-based ADD_TAGS predicate (asymmetry with FORBID_ATTR fix)
DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions prior to 3.4.0 have an inconsistency between FORBIDTAGS and FORBIDATTR handling when function-based ADDTAGS is used. Commit c361baa added an early exit for FORBIDATTR at line 1214. The same fix was not...
DOMPurify: FORBID_TAGS bypassed by function-based ADD_TAGS predicate (asymmetry with FORBID_ATTR fix)
There is an inconsistency between FORBIDTAGS and FORBIDATTR handling when function-based ADDTAGS is used. Commit c361baa added an early exit for FORBIDATTR at line 1214: / FORBIDATTR must always win, even if ADDATTR predicate would allow it / if FORBIDATTRlcName return false; The same fix was not...
GHSA-H7MW-GPVR-XQ4M DOMPurify: FORBID_TAGS bypassed by function-based ADD_TAGS predicate (asymmetry with FORBID_ATTR fix)
There is an inconsistency between FORBIDTAGS and FORBIDATTR handling when function-based ADDTAGS is used. Commit c361baa added an early exit for FORBIDATTR at line 1214: / FORBIDATTR must always win, even if ADDATTR predicate would allow it / if FORBIDATTRlcName return false; The same fix was not...
PT-2026-34604
Name of the Vulnerable Software and Affected Versions DOMPurify versions prior to 3.4.0 Description An inconsistency exists between the handling of FORBID TAGS and FORBID ATTR when a function-based ADD TAGS configuration is used. Specifically, when the EXTRA ELEMENT HANDLING.tagCheck function...
Operator Precedence Logic Error
Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Operator Precedence Logic Error in the form of short-circuit evaluation that gives precedence to ADDTAGS over FORBIDTAGS in sanitizeElements. In an...
Operator Precedence Logic Error
Overview dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Operator Precedence Logic Error in the form of short-circuit evaluation that gives precedence to ADDTAGS over FORBIDTAGS in sanitizeElements. In an application where ADDTAG...
GHSA-39Q2-94RC-95CP 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...
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...
