PT-2026-1723 · WordPress · Client Testimonial Slider

Published 2026-01-09 · Updated 2026-01-09 · CVE-2025-13897

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Client Testimonial Slider versions up to and including 2.0

Description The Client Testimonial Slider plugin for WordPress is susceptible to Stored Cross-Site Scripting through the aft testimonial meta name custom field within the Client Information metabox. Insufficient input sanitization and output escaping of user-supplied attributes allows authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts into pages. These scripts will execute when a user accesses the affected administrative page. The vulnerability affects the aft testimonial meta name field.

Recommendations Versions prior to and including 2.0 should be updated.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-13897

Affected Products

Client Testimonial Slider

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-13897 · Security Note
• https://plugins.trac.wordpress.org/browser/wp-client-testimonial/tags/2.0/wp-client-testimonial.php#L117 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/5bf12608-4e02-4b3a-9363-991dca5ee11b?source=cve · Note
• https://t.me/CVEtracker/41832 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2009644042502504752 · Twitter Post
• https://twitter.com/CVEnew/status/2009589657722352037 · Twitter Post
• https://plugins.trac.wordpress.org/browser/wp-client-testimonial/trunk/wp-client-testimonial.php#L117 · Note