What is CVE-2022-26267?

CVE-2022-26267 is a high-severity vulnerability in Piwigo, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2022-03-18.

How severe is CVE-2022-26267?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-26267 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Piwigo

CVE-2022-26267

Piwigo v12.2.0 was discovered to contain an information leak via the action parameter in /admin/maintenance_actions.php.

Vulnerability class: Broken Authentication

Published 2022-03-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.015 (72.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Piwigo — versions 12.2.0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

References

github.com/JCCD/Vul/blob/main/Piwigo_12.2.0_InforMation_Disclosure.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-26267?: CVE-2022-26267 is a high-severity vulnerability in Piwigo, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2022-03-18.
How severe is CVE-2022-26267?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-26267 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.