CVE-2026-61463

high

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.

References

https://www.vulncheck.com/advisories/shiori-authenticated-privilege-escalation-via-patch-api-v1-auth-account

https://github.com/go-shiori/shiori/issues/1196

https://github.com/go-shiori/shiori/commit/6c8a7dbc11b131609bfda736b14d61c51f9027b2

https://github.com/go-shiori/shiori

Details

Source: Mitre, NVD

Published: 2026-07-13

Updated: 2026-07-13

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High