CVE-2025-11834

MEDIUM

WP AD Gallery <= 1.3 - Authenticated Stored Cross-Site Scripting via 'startindex' Parameter

Title source: llm

Description

The WP AD Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'startindex' parameter of the ad-gallery shortcode in all versions up to, and including, 1.3. This is 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.

References (2)

Core 2

Core References

Product

https://plugins.trac.wordpress.org/browser/wp-ad-gallery/tags/1.3/shortcode/shortcode.php#L177

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/0144ae03-00ce-481d-8d29-7a484f1f6cbf?source=cve

Scores

CVSS v3 6.4

EPSS 0.0018

EPSS Percentile 7.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

wiellyam/WP AD Gallery < 1.3

Published Oct 22, 2025

Tracked Since Feb 18, 2026