CVE-2026-27834: Piwigo: SQL Injection in pwg.users.getList API Method via filter Parameter

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-04-03 · updated 2026-07-24
Weakness: CWE-89

Description

Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, a SQL Injection vulnerability exists in the pwg.users.getList Web Service API method. The filter parameter is directly concatenated into a SQL query without proper sanitization, allowing authenticated administrators to execute arbitrary SQL commands. This issue has been patched in version 16.3.0.

Affected products

Piwigo: before 16.3.0 — fixed in 16.3.0

How to fix

Upgrade to a fixed version: Piwigo 16.3.0. Check the vendor advisory for mitigations.

References

https://github.com/Piwigo/Piwigo/commit/9df471f16243371dc3725c5262e1632d23c8218a
https://github.com/Piwigo/Piwigo/security/advisories/GHSA-5jwg-cr5q-vjq2
https://piwigo.org/release-16.3.0
https://github.com/Piwigo/Piwigo/security/advisories/GHSA-5jwg-cr5q-vjq2

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