Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through custom font family names, which are interpolated into a @font-face CSS rule and injected into the page as HTML without sanitization. Because the backend accepts an arbitrary font-family string and the frontend writes the resulting style through innerHTML, a name containing markup such as a closing style tag followed by a script can break out of the style element and execute JavaScript on the Penpot origin. The attack is passive: any team member who opens a file referencing the malicious font triggers script execution simply by rendering the page, allowing theft of session cookies, actions performed as the victim, and access to their files and projects. This issue is fixed in version 2.15.3.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-08-27 | 1 | Disclosure1 |
| 2026-09-02 | 1 | Patch1 |
🚨 HIGH: CVE-2026-47666 (CVSS 7.6) - Stored XSS in Penpot design platform ≤2.14.3. Malicious font names execute JavaScript, stealing session cookies & files. Passive attack affects all team members. Patch to 2.15.3 now. #CVE #Vulnerability #PatchNow https://t.co/ryq9ruRrAT
Post summary
Penpot versions ≤2.14.3 are vulnerable to stored XSS via malicious font names; the issue is mitigated in patch 2.15.3.
CVE-2026-47666 Stored XSS in Penpot Up To 2.14.3 Via Malicious Font Family Names https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-47666
Post summary
CVE-2026-47666 describes a stored XSS flaw in Penpot (v2.14.3 and earlier) triggered by malicious font family names. The snippet provides no evidence of an active exploit, PoC, patch, or false‑positive claim.