Authorization bypass through user-controlled key in Kavita - #VU147279
Published: September 7, 2026
Vulnerability identifier: #VU147279
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to delete another user's saved Smart Filter.
The vulnerability exists due to authorization bypass through a user-controlled key in the DeleteFilter action of the DELETE /api/filter endpoint when handling a filter ID supplied in a request. A remote user can submit a request specifying another user's Smart Filter ID to delete the filter and its referenced dashboard and side-navigation shortcuts.
Affected software
Kavita
Remediation
Install security update from vendor's website.
Kavita - update to 0.9.1.0