Vulnerability · Published Feb 2, 2026 · Assigned by crafter

CVE-2026-1770Improper Control of Dynamically-Managed Code Resources in Crafter Studio

Medium 4.5

In plain English

A medium-severity security flaw in CrafterCMS from CrafterCMS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)4.5Medium

Exploit odds (30 days)0.5%top 59.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Improper Control of Dynamically-Managed Code Resources vulnerability in Crafter Studio of Crafter CMS allows authenticated developers to execute OS commands via Groovy Sandbox Bypass. By inserting malicious Groovy elements, an attacker may bypass sandbox restrictions and obtain RCE (Remote Code Execution).

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	org.craftercms:craftercms	4.5.0	GHSA-gj28-gw7w-3pxc

Affected products (as reported)

Vendor	Product	Versions
CrafterCMS	CrafterCMS	4.0.0 – before 4.5.0

Weakness: CWE-913 · Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/AU:N

References

https://docs.craftercms.org/current/security/advisory.html#cv-2026020201