CISA KEV High Injection

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 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.

Published Jan 17, 2025 · Updated Oct 13, 2026 · Sources: CISA Known Exploited Vulnerabilities, CVE Program (cve.org) e CISA ADP, NIST National Vulnerability Database, GitHub Security Advisories · CNA: GitHub_M

High

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

CISA KEV · Feb 20, 2025

How the score was calculated

Confirmed exploitation (CISA KEV)+35
EPSS 21.8% (30-day exploitation probability)+15
Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Confirmed

CISA KEV, listed Feb 20, 2025

EPSS FIRST

21.78%

ahead of 98% of scored CVEs · Oct 14, 2026

Affects

Craftcms

Cms and 2 more

CVSS base

8.1

High · 4 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

Active

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

Documented patch — github.com (NIST National Vulnerability Database)
Composer Craftcms/cms: fixed in version 5.5.8 — github.com (GitHub Security Advisories)
Composer Craftcms/cms: fixed in version 4.13.8 — github.com (GitHub Security Advisories)

CISA required action CISA

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

US federal deadline: Mar 13, 2025 — passed 581 day(s) ago

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Craftcms Cms, Craftcms Craft Cms, Composer Craftcms/cms).
Treat as emergency remediation: the CVE is in CISA KEV (confirmed exploitation).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
Apply the fixed version or the patch documented under Remediation.
EPSS ahead of 98% of scored CVEs: prioritize it in the patch queue.
Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Craftcms	Cms	version >= 5.0.0-RC1, < 5.5.5version >= 4.0.0-RC1, < 4.13.8	Vulnerable	CVE Program (cve.org) e CISA ADP
Craftcms	Craft Cms	> 4.0.0 and < 4.13.8> 5.0.0 and < 5.5.8version 4.0.0version 4.0.0-rc1version 4.0.0-rc2version 4.0.0-rc3version 5.0.0version 5.0.0-rc1	Vulnerable	NIST National Vulnerability Database
Composer	Craftcms/cms	≥ 5.0.0-RC1 and < 5.5.5≥ 4.0.0-RC1 and < 4.13.8	Vulnerable	GitHub Security Advisories

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

High

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
8.1	CVSS 3.1	High	2.2	5.9	nvd@nist.gov via NIST National Vulnerability Database
8.1	CVSS 3.1	High	—	—	GitHub_M via CVE Program (cve.org) e CISA ADP
8.0	CVSS 3.1	High	1.3	6.0	security-advisories@github.com via NIST National Vulnerability Database
8.0	CVSS 3.1	High	—	—	GitHub, Inc. via GitHub Security Advisories

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov)

Scoring entities (NIST, CNA, ADP) score independently; each score is shown with its origin. For prioritization we use 8.1 (NVD (NIST)) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-94 · Code Injection

Other CVEs with this weakness →

CISA KEV details CISA

CISA lists a CVE once it has evidence of exploitation against real targets.

Listed

Feb 20, 2025

Federal deadline

Mar 13, 2025

passed 581 day(s) ago

Ransomware use

Unknown

CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a reference date.

EPSS over time FIRST

Oct 12, 2026 → Oct 14, 2026 · 3 reading(s) · max 21.78%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Look for parameters with command/query metacharacters and unexpected child processes of the service.
Hunt retroactively in logs from before Feb 20, 2025 (KEV listing): exploitation may have started earlier.

web/proxy/WAF logsnetwork IDS/IPSapplication logsendpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

2026
Fix documented
Oct 13, 2026 · GitHub Security Advisories
Affected products added · composer/craftcms/cms
Oct 13, 2026 · GitHub Security Advisories
Fix documented
Oct 13, 2026 · NIST National Vulnerability Database
Affected products added · craftcms/craft cms
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · Published → Analyzed
Oct 13, 2026 · NIST National Vulnerability Database
Record published
Oct 13, 2026
Affected products added · craftcms/cms
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
CVSS changed · 8.1
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Published
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Added to CISA KEV (detected)
Oct 13, 2026 · CISA Known Exploited Vulnerabilities
Record created in this database
Oct 13, 2026 · CISA Known Exploited Vulnerabilities
2025
Added to CISA KEV catalog
Feb 19, 2025 · CISA
CVE published
Jan 17, 2025 · GitHub_M

Source activity

Repeated readings are counted rather than listed.

3× References added · Oct 13, 2026 – Oct 13, 2026
1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

6 on the record

github.com/craftcms/cms/security/advisories/GHSA-x684-96hh-833x
x_refsource_CONFIRM, Vendor Advisory, CVE Program (cve.org) e CISA ADP
github.com/craftcms/cms/commit/e59e22b30c9dd39e5e2c7fe02c147bcbd004e603
x_refsource_MISC, Patch, CVE Program (cve.org) e CISA ADP
www.cisa.gov/known-exploited-vulnerabilities-catalog
US Government Resource, NIST National Vulnerability Database
craftcms.com/knowledge-base/securing-craft
x_refsource_MISC, Product, CVE Program (cve.org) e CISA ADP
nvd.nist.gov/vuln/detail/CVE-2025-23209
GitHub Security Advisories
github.com/advisories/GHSA-x684-96hh-833x
GitHub Security Advisories

Elsewhere on this site

Craftcms
every CVE for this vendor

2025-02
what else CISA listed that month

Injection
same class

CWE-94
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-109308 Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 RCE via actionCacheUpdates Behavior Injection 3d
Medium CVE-2026-109307 Craft CMS 5.0.0 before 5.10.14 DOM XSS via returnUrl in 2FA Verification 3d
High CVE-2026-109305 Craft CMS 5.10.2 before 5.10.14 Twig Sandbox Bypass RCE via has some/has every 3d
Medium CVE-2026-109304 Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 Arbitrary File Read via Twig create() DOMDocument 3d
Medium CVE-2026-109306 Craft CMS 5.0.0 before 5.10.14 Missing Authorization via app/switch-to-licensed-edition 3d
High CVE-2026-105985 Authenticated RCE via render-components Entry Type overrides 9d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2025-23209 is "Craft CMS Code Injection Vulnerability", rated High. It affects Cms (Craftcms); versions are in the scope table. It is in CISA KEV: there is evidence of real-world exploitation. CVSS 8.1 describes technical severity. EPSS 21.78% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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