Is CVE-2025-23209 actively exploited?

Yes. KEV Intelligence tracks CVE-2025-23209 as a known exploited vulnerability. Confidence is confirmed.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2025-23209. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

CVE-2025-23209 affects craftcms cms. Reported affected versions include >= 5.0.0-RC1, = 4.0.0-RC1, < 4.13.8.

Yes. CVE-2025-23209 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2025-23209

Q: How should organizations remediate it?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Q: Is it in CISA KEV?

Yes. CVE-2025-23209 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

cms Remote Code Execution

craftcms / cms · >= 5.0.0-RC1, < 5.5.5

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Severity: CVSS 8.1 · High
Confidence: Confirmed
Exploit status: Exploited in the wild
EPSS: 4.4%
First observed: —
Last observed: —

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2025-23209 is a vulnerability affecting craftcms cms. 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...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.

Who is affected?

craftcms / cms >= 5.0.0-rc1, < 5.5.5.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Craft is a flexible, user-friendly CMS for creating custom digital experiences on the web and beyond

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.

Vendor Product Affected Status

craftcms cms >= 5.0.0-RC1, < 5.5.5 Affected

craftcms cms >= 4.0.0-RC1, < 4.13.8 Affected

Published: 18 Jan 2025
Exploitation Reported: 20 Feb 2025
Attack vector: Remote
Complexity: High
Privileges: Low
User interaction: Required

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2025-23209
https://github.com/craftcms/cms/security/advisories/GHSA-x684-96hh-833x github.com · CVE Record https://github.com/craftcms/cms/security/advisories/GHSA-x684-96hh-833x
https://github.com/craftcms/cms/commit/e59e22b30c9dd39e5e2c7fe02c147bcbd004e603 github.com · CVE Record https://github.com/craftcms/cms/commit/e59e22b30c9dd39e5e2c7fe02c147b...
https://craftcms.com/knowledge-base/securing-craft#keep-your-secrets-secret craftcms.com · CVE Record https://craftcms.com/knowledge-base/securing-craft#keep-your-secrets-...

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 20 Feb 2025

Independent exploitation attestation added to the KEV Intelligence record.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

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Source	Added
CISA First	2025-02-20 00:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets: 0
User-Agents: 0

Raw values available in Pro and Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

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No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

8.1 High

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS

4.4%

Weaknesses

Improper Control of Generation of Code ('Code Injection') CWE-94

Timeline

From disclosure to observed exploitation

20 Feb 2025
Added to CISA KEV

Listed in the CISA Known Exploited Vulnerabilities catalog
18 Jan 2025
CVE published

Vulnerability disclosed publicly
13 Jan 2025
CVE ID reserved

Identifier reserved by the CNA

Pro API

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Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2025-23209

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2025-23209",
  "confidence": "Confirmed",
  "cvss_score": 8.1,
  "cvss_estimated": false,
  "epss_score": 0.04356,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

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