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VulnerabilityPublished

CVE-2025-52122: Freeform · Code Injection

Source CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical · fixed in 5.10.16 : patch affected systems as a priority.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 5.10.16
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Aug 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

AI-suggested

To mitigate this vulnerability, European organizations should immediately identify all CraftCMS instances using the Freeform plugin versions between 5.0.0 and 5.10.15 inclusive. They should upgrade the plugin to version 5.10.16 or later, where the vulnerability is patched. Until the upgrade is applied, organizations should restrict form editing permissions to the minimum number of trusted users and implement strict access controls and monitoring on accounts with such privileges. Web application firewalls (WAFs) can be tuned to detect and block suspicious template injection patterns in form submission titles. Additionally, organizations should audit logs for unusual activity related to form editing and template processing. Employing runtime application self-protection (RASP) tools can help detect and prevent exploitation attempts in real time. Finally, organizations should review their incident response plans to prepare for potential exploitation scenarios involving arbitrary code execution on web servers.

Description

Freeform 5.0.0 to before 5.10.16, a plugin for CraftCMS, contains an Server-side template injection (SSTI) vulnerability, resulting in arbitrary code injection for all users that have access to editing a form (submission title).

References

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