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VulnerabilityPublished

CVE-2025-13407: Gravity Forms (WordPress plugin) · Unrestricted File Upload

Affects Gravity Forms (WordPress plugin)Source CVE Database V5

0

Not known to be exploited · CVSS 6.8 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
6.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Dec 2025

  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
Gravity FormsAffected
  • =0
Fixed in–

AI-suggested

To mitigate CVE-2025-13407, European organizations should immediately plan to update the Gravity Forms plugin to version 2.9.23.1 or later once the patch is released. Until then, organizations should consider disabling the chunked upload functionality if possible or restricting file upload capabilities to trusted users only. Implement strict server-side validation to restrict allowed file types and reject any executable or script files. Employ web application firewalls (WAFs) with rules to detect and block attempts to upload PHP or other dangerous files. Monitor upload directories for unexpected or suspicious files and implement file integrity monitoring to detect unauthorized changes. Restrict access permissions on upload directories to prevent execution of uploaded files, for example by disabling PHP execution in these directories via web server configuration. Conduct regular security audits and vulnerability scans on WordPress installations and plugins. Educate site administrators about the risks of unrestricted file uploads and encourage timely patch management. Finally, implement logging and alerting mechanisms to detect anomalous upload activity or enumeration attempts targeting upload paths.

Description

The Gravity Forms WordPress plugin before 2.9.23.1 does not properly prevent users from uploading dangerous files through its chunked upload functionality, allowing attackers to upload PHP files to affected sites and achieve Remote Code Execution, granted they can discover or enumerate the upload path.

References

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