CVE-2026-27833 Details
Description
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.
A vulnerability in Piwigo's photo gallery application allows unauthenticated users to access the full browsing history of all gallery visitors. This issue exists in versions prior to 16.3.0, where the pwg.history.search API method was not restricted to admin users. The lack of authentication checks enables unauthorized access to sensitive user data, including IP addresses, usernames, user IDs, and detailed browsing and download histories.
Users can upgrade to Piwigo version 16.3.0 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Piwigo/Piwigo/commit/d05c16561ce3692ca922199f8c8d7b1a45893f1c | [email protected] | Patch |
| https://github.com/Piwigo/Piwigo/security/advisories/GHSA-397m-gfhm-pmg2 | [email protected] | ExploitVendor Advisory |
| https://piwigo.org/release-16.3.0 | [email protected] | Release Notes |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| piwigo piwigo | < 16.3.0 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 9, 2026 | Initial Analysis | [email protected] |
| Apr 3, 2026 | New CVE Received | [email protected] |