Auth bypass in Photoprism
CVE-2026-57945
PhotoPrism before 260601-a7d098548 contains a broken access control vulnerability that allows authenticated non-admin users to modify other users' profile information by sending requests to arbitrary user endpoints. Attackers can exploit the missing session-to-user identifier validation in the PUT users API endpoint to overwrite another user's profile details without authorization.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (23.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Photoprism — versions 0
Weakness classification (CWE)
References
- github.com/photoprism/photoprism/issues/5619 (issue-tracking)
- github.com/photoprism/photoprism/releases/tag/260601-a7d098548 (release-notes)
- www.vulncheck.com/advisories/photoprism-unauthorized-user-profile-modification-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-57945?
- CVE-2026-57945 is a medium-severity vulnerability in Photoprism, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-06-29.
- How severe is CVE-2026-57945?
- Medium severity. CVSS v3 base score is 4.3 out of 10.