The STM Gallery 1.9 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'composicion' parameter in all versions up to, and including, 0.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Advisories

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Fixes

Solution

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Workaround

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History

Thu, 08 Jan 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Sergiotoca
Sergiotoca stm Gallery
Wordpress
Wordpress wordpress
Vendors & Products Sergiotoca
Sergiotoca stm Gallery
Wordpress
Wordpress wordpress

Wed, 07 Jan 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 07 Jan 2026 09:30:00 +0000

Type Values Removed Values Added
Description The STM Gallery 1.9 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'composicion' parameter in all versions up to, and including, 0.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Title STM Gallery 1.9 <= 0.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-01-07T15:26:20.392Z

Reserved: 2025-12-01T19:47:08.297Z

Link: CVE-2025-13848

cve-icon Vulnrichment

Updated: 2026-01-07T15:26:17.704Z

cve-icon NVD

Status : Received

Published: 2026-01-07T12:16:50.440

Modified: 2026-01-07T12:16:50.440

Link: CVE-2025-13848

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-08T09:49:41Z

Weaknesses