---
id: CVE-2026-42324
title: Piwigo is a full featured open source photo gallery application for the web
summary: >-
  Piwigo is a full featured open source photo gallery application for the web.
  Prior to 16.4.0, admin/element_set_ranks.php stores administrator-controlled
  image_order[] values without enforcing the existing sort-field whitelist. The
  store…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-89
vendor: Piwigo
product: Piwigo
affected:
  - Piwigo < 16.4.0
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T17:17:08.467'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-42324'
references:
  - url: >-
      https://github.com/Piwigo/Piwigo/commit/ba1f803f8cefd3602ccb9c6f0155cd529510288a
    label: security-advisories@github.com
  - url: >-
      https://github.com/Piwigo/Piwigo/commit/ef9e65386d76f9c85f1e23a45dd7af14a5b73a47
    label: security-advisories@github.com
  - url: 'https://github.com/Piwigo/Piwigo/releases/tag/16.4.0'
    label: security-advisories@github.com
  - url: 'https://github.com/Piwigo/Piwigo/security/advisories/GHSA-jhp4-7f82-8f6q'
    label: security-advisories@github.com
  - url: 'https://github.com/Piwigo/Piwigo/security/advisories/GHSA-jhp4-7f82-8f6q'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-25T16:14:12.579220Z'
ingestedAt: '2026-09-25T16:12:08.726Z'
---

## Overview

Piwigo is a full featured open source photo gallery application for the web. Prior to 16.4.0, admin/element_set_ranks.php stores administrator-controlled image_order[] values without enforcing the existing sort-field whitelist. The stored album image_order expression is later concatenated into ORDER BY clauses by admin/batch_manager_global.php, admin/batch_manager_unit.php, include/section_init.inc.php, and include/ws_functions/pwg.categories.php. When at least one album contains at least one photo, an authenticated administrator can store a crafted expression and trigger it in a later album or Batch Manager query to disclose, modify, or disrupt database data. This issue is fixed in version 16.4.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.