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VulnerabilityPublished Updated

CVE-2026-0690: FlatPM (WordPress plugin) · Cross-site Scripting

Affects FlatPM (WordPress plugin)Source CVE Database V5

0

Not known to be exploited · CVSS 6.4 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
6.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
flatboyFlatPM – Ad Manager, AdSense and Custom CodeAffected
  • <=3.2.2
Fixed in–

AI-suggested

Until an official fix is available, restrict contributor-level access to trusted users only and consider removing or sanitizing input in the 'rank_math_description' custom field manually. Monitor vendor channels for updates or patches addressing this vulnerability.

Description

The FlatPM – Ad Manager, AdSense and Custom Code plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'rank_math_description' custom field in all versions up to, and including, 3.2.2 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

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