Vulnerability · Published Sep 4, 2026 · Assigned by VulnCheck

CVE-2026-85613OpenPanel before 2.3.0 Unauthenticated XSS via SVG Favicon Proxy

High 8.2

In plain English

A high-severity cross-site scripting in openpanel from Openpanel-dev. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.4%top 66.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Openpanel-dev	openpanel	0 – before 2.3.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

References

GitHub Security Advisory (GHSA-r7hx-q6f4-vj6h) vendor-advisory
VulnCheck Advisory: OpenPanel Unauthenticated XSS via SVG Favicon Proxy third-party-advisory