Vulnerability · Published Apr 12, 2026 · Assigned by VulDB
CVE-2026-61071Panel-dev MaxKB ChatHeadersMiddleware chat_headers_middleware.py cross site scripting
Low 3.5
In plain English
A low-severity cross-site scripting in MaxKB from 1Panel-dev. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).
Official description
A flaw has been found in 1Panel-dev MaxKB up to 2.6.1. This issue affects some unknown processing of the file apps/common/middleware/chat_headers_middleware.py of the component ChatHeadersMiddleware. This manipulation of the argument Name causes cross site scripting. Remote exploitation of the attack is possible. Upgrading to version 2.8.0 is capable of addressing this issue. Patch name: 026a2d623e2aa5efa67c4834651e79d5d7cab1da. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| 1Panel-dev | MaxKB | 2.6.02.6.1 |
Weakness: CWE-79, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C
References
- VDB-356966 | 1Panel-dev MaxKB ChatHeadersMiddleware chat_headers_middleware.py cross site scripting vdb-entry, technical-description
- VDB-356966 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #782263 | 1Panel-dev MaxKB <= v2.6.1 Stored XSS third-party-advisory
- https://github.com/AnalogyC0de/public_exp/issues/24 issue-tracking
- https://github.com/1Panel-dev/MaxKB/pull/4919 issue-tracking, patch
- https://github.com/1Panel-dev/MaxKB/commit/026a2d623e2aa5efa67c4834651e79d5d7cab1da patch
- https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0 patch
- https://github.com/1Panel-dev/MaxKB/ product