How severe is GHSA-f3gw-9ww9-jmc3?

GHSA-f3gw-9ww9-jmc3 has a CVSS score of 10/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by GHSA-f3gw-9ww9-jmc3?

GHSA-f3gw-9ww9-jmc3 affects the following packages: craftcms/cms (Packagist), craftcms/cms (Packagist), craftcms/cms (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-f3gw-9ww9-jmc3?

Update craftcms/cms to version 3.9.15 or later. Run your dependency manager's update command and verify no transitive dependencies pin the vulnerable version. Use O3 Security's SCA scanner to confirm the fix is applied across your entire dependency tree.

Is GHSA-f3gw-9ww9-jmc3 actively exploited in the wild?

Yes. There are 4 known exploit references for GHSA-f3gw-9ww9-jmc3, including 1 documented proof-of-concept exploit on Exploit-DB. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for GHSA-f3gw-9ww9-jmc3?

GHSA-f3gw-9ww9-jmc3 has an EPSS (Exploit Prediction Scoring System) score of 93.1%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is GHSA-f3gw-9ww9-jmc3 in the CISA Known Exploited Vulnerabilities catalog?

Yes. GHSA-f3gw-9ww9-jmc3 (Craft CMS Code Injection Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-03-20. CISA required all US federal civilian agencies to remediate this vulnerability by 2026-04-03. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is GHSA-f3gw-9ww9-jmc3?

GHSA-f3gw-9ww9-jmc3 is classified as Code Injection (CWE-94). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Is there exploit tooling available for GHSA-f3gw-9ww9-jmc3?

A Nuclei detection template exists for GHSA-f3gw-9ww9-jmc3, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was GHSA-f3gw-9ww9-jmc3 published, and has it been updated?

GHSA-f3gw-9ww9-jmc3 was published on April 25, 2025 and was last updated on March 20, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2026-03-20 — agencies required to remediate by 2026-04-03

🐘 Packagist

GHSA-f3gw-9ww9-jmc3

CRITICAL

Craft CMS Allows Remote Code Execution

Also known asCVE-2025-32432

Published

Apr 25, 2025

Updated

Mar 20, 2026

Affected

3 pkgs

Patched

3 / 3

Exploits

4 known

EPSS Exploitation Probability

via FIRST.org ↗

93.1%probability of exploitation in next 30 days

Very High Risk100th percentile+0.20%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

3 pkgs affected

🐘craftcms/cms🐘craftcms/cms🐘craftcms/cms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Impact

This is an additional fix for https://github.com/craftcms/cms/security/advisories/GHSA-4w8r-3xrw-v25g

This is a high-impact, low-complexity attack vector. To mitigate the issue, users running Craft installations before the fixed versions are encouraged to update to at least that version.

Details

https://craftcms.com/knowledge-base/craft-cms-cve-2025-32432

References

https://github.com/craftcms/cms/commit/e1c85441fa47eeb7c688c2053f25419bc0547b47

https://github.com/craftcms/cms/blob/3.x/CHANGELOG.md#3915---2025-04-10-critical https://github.com/craftcms/cms/blob/4.x/CHANGELOG.md#41415---2025-04-10-critical https://github.com/craftcms/cms/blob/5.x/CHANGELOG.md#5617---2025-04-10-critical

https://sensepost.com/blog/2025/investigating-an-in-the-wild-campaign-using-rce-in-craftcms/

Credits

Credit to Orange Cyberdefense for discovering a reporting this bug.

Affected Packages

3 total 3 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`craftcms/cms`	≥ 3.0.0-RC1&&< 3.9.15	3.9.15
🐘Packagist	`craftcms/cms`	≥ 4.0.0-RC1&&< 4.14.15	4.14.15
🐘Packagist	`craftcms/cms`	≥ 5.0.0-RC1&&< 5.6.17	5.6.17

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-52525webappsmultiple

Craft CMS 5.6.16 - RCE

by banyamer · Apr 29, 2026

Exploit-DB Source

Frequently Asked Questions

### Impact This is an additional fix for https://github.com/craftcms/cms/security/advisories/GHSA-4w8r-3xrw-v25g This is a high-impact, low-complexity attack vector. To mitigate the issue, users running Craft installations before the fixed versions are encouraged to update to at least that version. ### Details https://craftcms.com/knowledge-base/craft-cms-cve-2025-32432 ### References https://github.com/craftcms/cms/commit/e1c85441fa47eeb7c688c2053f25419bc0547b47 https://github.com/craftcms/cms/blob/3.x/CHANGELOG.md#3915---2025-04-10-critical https://github.com/craftcms/cms/blob/4.x/CH

O3 Security · Impact-Aware SCA

Is GHSA-f3gw-9ww9-jmc3 in your stack?

O3 detects GHSA-f3gw-9ww9-jmc3 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

10/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

None

S:Scope

Changed

C:Confidentiality

High

I:Integrity

High

A:Availability

Low

Raw vector

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

CWE Classification

Weaponization

OpenSSF Scorecard

Package health score

cms

6.0/10

Code-Review1/10

Maintained10/10

Branch-Protection3/10

Assessed Jun 8, 2026

Timeline

Disclosed

Apr 25, 2025

KEV added

Mar 20, 2026

Last updated

Mar 20, 2026

First exploit

Apr 29, 2026

Identifiers

GHSA-f3gw-9ww9-jmc3

References

Advisorynvd.nist.gov Webgithub.com Webgithub.com Webgithub.com Webcraftcms.com Webgithub.com Webgithub.com Webgithub.com Websensepost.com Webcisa.gov Packagegithub.com

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