Medium · published March 3, 2026
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.
| Product | Versions | Fixed in |
|---|---|---|
| cure53/dompurify | ≥ 2.5.3, ≤ 2.5.8 | — |
| cure53/dompurify | ≥ 3.1.3, < 3.2.7 | 3.2.7 |