CrafterCMS: Improper Control of Dynamically-Managed Code Resources
CVE-2025-6384 is a critical-severity improper control of dynamically-managed code resources vulnerability in CrafterCMS, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. The record lists version 4.3.0 as the first without the flaw, so updating CrafterCMS to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.99% chance of exploitation within 30 days, higher than 63% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update CrafterCMS to 4.3.0 or a later version.
- Read the advisory on docs.craftercms.org for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| CrafterCMS | CrafterCMS | 4.0.0 up to, but not including, 4.3.0 | 4.3.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 7.3 | High | CNA (craftersoftware.com) |
| CVSS 3.1 | 9.1 | Critical | NVD |
Official description
Improper Control of Dynamically-Managed Code Resources vulnerability in Crafter Studio of CrafterCMS 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). This issue affects CrafterCMS: from 4.0.0 through 4.2.2.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Control of Dynamically-Managed Code Resources
The product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements.
How developers prevent this class of flaw
- For any externally-influenced input, check the input against an allowlist of acceptable values.
- Refactor the code so that it does not need to be dynamically managed.
More Improper Control of Dynamically-Managed Code Resources vulnerabilities (CWE-913)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in CrafterCMS
- 9.1 Critical severity
- 7.2 High severity
Recent Improper Control of Dynamically-Managed Code Resources vulnerabilities
- 9.9 Critical severity
- 7.5 High severity
- 9.8 Critical severity
- 8.5 High severity
- 8.8 High severity
- 9.8 Critical severity
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