API Vulnerability in Piwigo Open Source Photo Gallery
CVE-2026-27833

7.5HIGH

Key Information:

Vendor

Piwigo

Status
Piwigo
Vendor
CVE Published:
3 April 2026

What is CVE-2026-27833?

Earlier versions of Piwigo, an open-source photo gallery application, contain a vulnerability in the pwg.history.search API method that lacks the admin_only option. This flaw enables unauthenticated users to access sensitive browsing history data of all gallery visitors. The issue has been resolved in Piwigo version 16.3.0, which adds necessary security to prevent unauthorized access.

Affected Version(s)

Piwigo < 16.3.0

References

https://github.com/Piwigo/Piwigo/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/Piwigo/Piwigo/commit/d05c16561ce3692ca...
x_refsource_MISC
https://piwigo.org/release-16.3.0
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.