CVE-2026-61463

Description

Shiori contains a privilege escalation vulnerability in the account update endpoint that allows authenticated users to modify the owner field without authorization checks. Attackers can escalate to administrator by submitting a crafted PATCH request with owner: true, then re-authenticate to obtain an admin JWT token granting full system access.

CVSS Vector

References

• https://github.com/go-shiori/shiori
• https://github.com/go-shiori/shiori/commit/6c8a7dbc11b131609bfda736b14d61c51f9027b2
• https://github.com/go-shiori/shiori/issues/1196
• https://www.vulncheck.com/advisories/shiori-authenticated-privilege-escalation-via-patch-api-v1-auth-account
• https://github.com/go-shiori/shiori/issues/1196