GHSA-2pwp-2369-8fg3 Payload: Bypassed sanitization of user uploaded SVGs

• npm payload: < 3.90.0 → fixed in 3.90.0 • npm payload: >= 4.0.0-canary.0, < 4.0.0-canary.34 → fixed in 4.0.0-canary.34

Impact A malicious SVG file upload could bypass sanitization, be stored, and execute attacker-controlled JavaScript (XSS) after a user downloads it and opens it. You are affected if: • You have a collection configured to upload and allow SVG files which can then be downloaded by users. Patches The fix validates SVG content on every upload path and hardens SVG/XML delivery so stored SVGs cannot frame attacker content. Users should upgrade Payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`. Workarounds Disallow SVG uploads, or serve uploaded SVGs as downloads with Content-Disposition: attachment and a strict CSP. These mitigations reduce exposure but do not replace upgrading when the patched release is available.