CVE-2026-85613: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Openpanel-dev openpanel
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.
CVSS v4.0
Score 8.4high
Affected software
Openpanel-dev
openpanel
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-85613 is a high-severity cross-site scripting vulnerability in OpenPanel prior to version 2.3.0. The issue exists in the unauthenticated favicon proxy endpoint (GET /misc/favicon), which improperly neutralizes input when generating web pages. Attackers can supply URLs pointing to malicious SVG files containing embedded scripts. When a victim's browser loads these SVG files, the scripts execute with the API origin's privileges, allowing same-origin requests to authenticated endpoints and potentially unauthorized actions.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary scripts in the victim's browser without authentication. This can lead to unauthorized actions on authenticated endpoints due to same-origin policy privileges, potentially compromising user data or session integrity. The vulnerability has a CVSS 4.0 score of 8.4, indicating high severity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid exposing the vulnerable endpoint or restrict access to trusted users. Monitor vendor channels for updates regarding patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-04T11:01:47.585Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9aada3acd9273b4981da3b
Added to database: 09/04/2026, 11:38:11 UTC
Last enriched: 10/02/2026, 15:04:00 UTC
Last updated: 10/17/2026, 18:48:23 UTC
Views: 78
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