Background exploitation KEV catalog
CVE-2025-23209

Craft CMS Code Injection Vulnerability

Craft is a flexible, user-friendly CMS for creating custom digital experiences on the web and beyond. This is an remote code execution (RCE) vulnerability that affects Craft 4 and 5 installs where your security key has already been…

CheckOps priority index
5.7/10 Patch within 7 days
Severity8.1
Probability2.2
Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 21.6% higher than 97.6% of CVEs
CVSS 3.1 8.1 AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:
Exploited for 621 days 20 Feb 2025
CISA due date 13 Mar 2025 for US federal agencies

Exploitation probability EPSS · FIRST

05010025 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

  • KEV catalog (CISA)20 Feb 2025
  • Exploited in EUVD (ENISA)20 Feb 2025
  • Used by ransomwareno
  • EPSS above 10 %21.6%
  • No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

Craft is a flexible, user-friendly CMS for creating custom digital experiences on the web and beyond. This is an remote code execution (RCE) vulnerability that affects Craft 4 and 5 installs where your security key has already been compromised. Anyone running an unpatched version of Craft with a compromised security key is affected. This vulnerability has been patched in Craft 5.5.8 and 4.13.8. Users who cannot update to a patched version, should rotate their security keys and ensure their privacy to help migitgate the issue.

Affected products

CMSCraft CMS
Affected versions
  • 5.0.0-RC1, < 5.5.5
  • 4.0.0-RC1, < 4.13.8
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 21.8%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2025-32432Craft CMS Code Injection Vulnerability
    9.4 · Background exploitation
  • CVE-2025-35939Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability
    4.6 · Background exploitation
  • CVE-2024-56145Craft CMS Code Injection Vulnerability
    9.0 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities