XSS in Openpanel-Dev Openpanel
CVE-2026-85613
OpenPanel before 2.3.0 contains a cross-site scripting vulnerability in the unauthenticated favicon proxy endpoint GET /misc/favicon that allows remote attackers to execute scripts by supplying an SVG file URL. Attackers can host malicious SVG files with embedded scripts that execute in the victim's browser on the API origin, enabling same-origin credentialed requests to authenticated endpoints.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (32.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-r7hx-q6f4-vj6h) (vendor-advisory)
- VulnCheck Advisory: OpenPanel Unauthenticated XSS via SVG Favicon Proxy (third-party-advisory)
Frequently asked questions
- What is CVE-2026-85613?
- CVE-2026-85613 is a high-severity vulnerability in Openpanel-Dev Openpanel, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-09-04.
- How severe is CVE-2026-85613?
- High severity. CVSS v3 base score is 8.2 out of 10.