CVE-2026-27833 HIGH

CVE-2026-27833: Piwigo: Unauthenticated Information Disclosure via pwg.history.search API

Vendor Piwigo
Product Piwigo
Weakness CWE-862 · Missing authorization
Published April 3, 2026
Last update April 6, 2026
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 3, 2026 CVE published
April 6, 2026 Record updated