PT-2026-3577 · WordPress · Flatpm – Ad Manager

Dj + 1 · Published 2026-01-20 · Updated 2026-01-21 · CVE-2026-0690

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 FlatPM – Ad Manager, AdSense and Custom Code plugin for WordPress versions through 3.2.2

Description The FlatPM – Ad Manager, AdSense and Custom Code plugin for WordPress has a Stored Cross-Site Scripting issue. This is due to inadequate sanitization of user-supplied data and insufficient output escaping when handling the rank math description custom field. Authenticated attackers with contributor-level access or higher can inject malicious web scripts into pages. These scripts will then execute when other users access the compromised pages.

Recommendations Update FlatPM – Ad Manager, AdSense and Custom Code plugin for WordPress to a version later than 3.2.2.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-0690

Affected Products

Flatpm – Ad Manager

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-0690 · Security Note
• https://twitter.com/CVEnew/status/2013625625735786706 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2013764595739943306 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/14b89618-8a30-4b8c-9490-f05e8fa8ca8a?source=cve · Note
• https://t.me/CVEtracker/42627 · Telegram Post
• https://plugins.trac.wordpress.org/changeset/3434760/flatpm-wp · Note