VULNERABILITY INTELLIGENCE
CVE-2026-22659
CVSS score8.1 HIGH
EPSS probability0.53%
CISA KEVNot currently listed
Published2026-07-10
Last modified2026-07-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Description
FlaskBB through 2.2.0, fixed in commit acc88cf, contains an authorization bypass vulnerability that allows authenticated moderators to perform unauthorized actions on topics in forums they do not control by submitting crafted topic ID lists. Attackers can include a low-ID topic from a permitted forum as an anchor in a batch request, causing the permission check applied only to the first result to pass, and then execute lock, unlock, delete, or hide actions against topics in unmoderated forums.
Weakness classification
- disclosure@vulncheck.com: CWE-863