CVE-2026-85613CWE-79cross-site-scripting

CVE-2026-85613

High · published September 4, 2026

CVSS v3.1
8.2
EPSS
0%
Percentile
32.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
CVSS v4.0
8.4 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
EPSS
0.00395 · 32.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-04T16:17Z
References (3)
https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-r7hx-q6f4-vj6h · [email protected]https://www.vulncheck.com/advisories/openpanel-unauthenticated-xss-via-svg-favicon-proxy · [email protected]https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-r7hx-q6f4-vj6h · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 06 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 04 SEP 11:30Z
    OpenPanel Unauthenticated XSS via SVG Favicon Proxy
    cvelistv5