PT-2025-32031 · WordPress · Flex Guten

Peter Thaleikis · Published 2025-08-06 · Updated 2025-08-06 · CVE-2025-6256

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 Flex Guten plugin for WordPress versions up to and including 1.2.5

Description The Flex Guten plugin for WordPress is susceptible to Stored Cross-Site Scripting via the thumbnailHoverEffect parameter due to insufficient input sanitization and output escaping. This 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 injected page.

Recommendations Update Flex Guten plugin to a version newer than 1.2.5.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-6256

Affected Products

Flex Guten

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2025-6256 · Security Note
• https://plugins.trac.wordpress.org/changeset/3340743 · Note
• https://plugins.trac.wordpress.org/browser/flex-guten/trunk/build/blocks/dwp-latest-posts/render.php#L107 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/ca149cc0-b256-41cd-b64d-dd905bd72602?source=cve · Note
• https://twitter.com/CVEnew/status/1952931938928312609 · Twitter Post
• https://wordpress.org/plugins/flex-guten/#developers · Note