CVE-2025-15599

DOMPurify XSS via Textarea Rawtext Bypass in SAFE_FOR_XML

State: Published
Severity: 5.1 Medium
Published: Mar 3, 2026
Updated: Oct 8, 2026
Reserved: Mar 3, 2026

Description

DOMPurify 3.1.3 through 3.2.6 and 2.5.3 through 2.5.8 contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting missing textarea rawtext element validation in the SAFE_FOR_XML regex. Attackers can include closing rawtext tags like </textarea> in attribute values to break out of rawtext contexts and execute JavaScript when sanitized output is placed inside rawtext elements. The 3.x branch was fixed in 3.2.7; the 2.x branch was never patched.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N	VulnCheck
3.1	6.1 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	VulnCheck

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
DOMPurifycure53	3.1.3 through 3.2.6Affected 3.2.7Not affected 2.5.3 through 2.5.8Affected

References

DOMPurify GitHub Repositoryproduct
https://github.com/cure53/DOMPurify/commit/c861f5a83fb8d90800f1680f855fee551161ac2bpatch
VulnCheck Advisory: DOMPurify XSS via Textarea Rawtext Bypass in SAFE_FOR_XMLthird-party-advisory

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