Piwigo up to 16.2.x ws_std_image_sql_filter sql injection

Summaryinfo

A vulnerability classified as critical has been found in Piwigo up to 16.2.x. This impacts the function ws_std_image_sql_filter. Performing a manipulation of the argument f_min_date_available/f_max_date_available/f_min_date_created/f_max_date_created results in sql injection. This vulnerability is identified as CVE-2026-27634. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Piwigo up to 16.2.x. This affects the function ws_std_image_sql_filter. The manipulation of the argument f_min_date_available/f_max_date_available/f_min_date_created/f_max_date_created with an unknown input leads to a sql injection vulnerability. CWE is classifying the issue as CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, the four date filter parameters (f_min_date_available, f_max_date_available, f_min_date_created, f_max_date_created) in ws_std_image_sql_filter() are concatenated directly into SQL without any escaping or type validation. This could result in an unauthenticated attacker reading the full database, including user password hashes. This issue has been patched in version 16.3.0.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-27634 since 02/20/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1505 for this issue.

Upgrading to version 16.3.0 eliminates this vulnerability. Applying the patch 0d5ed1f7778bbe263410446d8cf64594df75bd08 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Photo Gallery Software

Name

• Piwigo

Version

• 16.0
• 16.1
• 16.2

License

• open-source

Website

• Product: https://github.com/Piwigo/Piwigo/

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