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Vulnerability record · CVE-2026-27833 · published 3 April 2026

CVE-2026-27833: Piwigo missing authorization vulnerability

Piwigo · Piwigo

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.

7.5 CVSS 3.1 High EPSS 1.7% · top 23.7% CWE-862 · Missing authorization
7.5CVSS 3.1 base score
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
24 Jul 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Piwigo/Piwigo/commit/d05c16561ce3692ca922199f8c8d7b1a45893f1c Patch
https://github.com/Piwigo/Piwigo/security/advisories/GHSA-397m-gfhm-pmg2 ExploitVendor Advisory
https://piwigo.org/release-16.3.0 Release Notes

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2014-4648Piwigo vulnerabilityUnspecified vulnerability in Piwigo before 2.6.3 has unknown impact and attack vectors, related to a "security failure."EPSS 1.5%9.8CVE-2023-33361Piwigo sql injection vulnerabilityPiwigo 13.6.0 is vulnerable to SQL Injection via /admin/permalinks.php.EPSS 0.92%9.8CVE-2023-33362Piwigo sql injection vulnerabilityPiwigo 13.6.0 is vulnerable to SQL Injection via in the "profile" function.EPSS 9.1%9.8CVE-2020-19213Piwigo sql injection vulnerabilitySQL Injection vulnerability in cat_move.php in piwigo v2.9.5, via the selection parameter to move_categories.EPSS 16%9.8CVE-2021-32615Piwigo sql injection vulnerabilityPiwigo 11.4.0 allows admin/user_list_backend.php order[0][dir] SQL Injection.EPSS 2.1%9.8CVE-2017-10682Piwigo sql injection vulnerabilitySQL injection vulnerability in the administrative backend in Piwigo through 2.9.1 allows remote users to execute arbitrary SQL commands via the cat_f…EPSS 8.3%9.8CVE-2016-10105Piwigo information exposure vulnerabilityadmin/plugin.php in Piwigo through 2.8.3 doesn't validate the sections variable while using it to include files. This can cause information disclosur…EPSS 2.4%9.6CVE-2019-13363Piwigo cross-site scripting vulnerabilityadmin.php?page=notification_by_mail in Piwigo 2.9.5 has XSS via the nbm_send_html_mail, nbm_send_mail_as, nbm_send_de…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2026-27833), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.