Cheshire Cat AI core through 2.0.23 contains a stored cross-site scripting vulnerability in the uploads plugin that allows authenticated users to upload HTML files via POST /uploads without type restrictions. Attackers can send the public GET /uploads/{path} URL to a signed-in victim, executing script in the application origin with the victim's access_token cookie, including administrators.
History

Tue, 13 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 11 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Cheshire-cat-ai
Cheshire-cat-ai core
Vendors & Products Cheshire-cat-ai
Cheshire-cat-ai core

Sun, 11 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
Description Cheshire Cat AI core through 2.0.23 contains a stored cross-site scripting vulnerability in the uploads plugin that allows authenticated users to upload HTML files via POST /uploads without type restrictions. Attackers can send the public GET /uploads/{path} URL to a signed-in victim, executing script in the application origin with the victim's access_token cookie, including administrators.
Title Cheshire Cat AI core through 2.0.23 Stored XSS via uploads plugin
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-11T12:19:34.601Z

Updated: 2026-10-13T13:18:28.253Z

Reserved: 2026-10-11T01:52:33.647Z

Link: CVE-2026-108725

cve-icon Vulnrichment

Updated: 2026-10-13T13:18:16.471Z

cve-icon NVD

Status : Deferred

Published: 2026-10-11T13:17:16.137

Modified: 2026-10-16T19:18:44.867

Link: CVE-2026-108725

cve-icon Redhat

No data.