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PatchSiren cyber security CVE debrief

CVE-2025-23209 Craft CMS CVE debrief

CVE-2025-23209 is a Craft CMS code injection vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2025-02-20. The supplied corpus confirms known exploitation status and provides a vendor-directed response: apply mitigations per vendor instructions, or discontinue use of the product if mitigations are unavailable. The corpus does not include affected versions, severity, or exploit mechanics.

Vendor
Craft CMS
Product
Craft CMS
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2025-02-20
Original CVE updated
2025-02-20
Advisory published
2025-02-20
Advisory updated
2025-02-20

Who should care

Organizations running Craft CMS, especially administrators, security operations teams, and incident responders responsible for patching, mitigation, and exposure reduction.

Technical summary

The available source material identifies the issue as a Craft CMS code injection vulnerability and shows that CISA classified it as known exploited on 2025-02-20. No additional technical detail is present in the supplied corpus regarding the attack path, impacted versions, or execution conditions. From a defensive standpoint, the key takeaway is that this is a prioritized remediation item under CISA KEV guidance.

Defensive priority

Urgent. CISA KEV inclusion means this issue should be treated as a high-priority remediation item, with attention to the 2025-03-13 due date in the KEV catalog.

Recommended defensive actions

  • Locate all Craft CMS deployments in your environment, including test and staging instances.
  • Review the vendor security advisory linked by CISA and follow the provided mitigation or patch guidance.
  • Apply vendor mitigations or updates as soon as possible.
  • If mitigations are unavailable, discontinue use of the product until a protected state is restored, per CISA guidance.
  • Confirm remediation with configuration and version checks, and keep records of the action taken before the CISA due date.

Evidence notes

The supplied corpus contains a CISA KEV entry for CVE-2025-23209 naming the issue as a Craft CMS code injection vulnerability, with dateAdded 2025-02-20 and dueDate 2025-03-13. CISA metadata also points to a Craft CMS GitHub security advisory and the NVD record, but the corpus does not include their contents. No CVSS score, affected versions, or exploit details are provided here.

Official resources

The supplied timeline shows the CVE published and modified on 2025-02-20, and CISA listed the issue in KEV on the same date. Beyond that, the corpus does not provide a separate disclosure narrative.