CVE-2026-27833: Piwigo

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, the pwg.history.search API method in Piwigo is registered without the admin_only option, allowing unauthenticated users to access the full browsing history of all gallery visitors. This issue has been patched in version 16.3.0.

Affected products

• Piwigo Piwigo: before 16.3.0 (fixed in 16.3.0)

Published 2026-04-03. Last modified 2026-07-24.