Path traversal in diem-project diem dmCodeEditor module
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
diem-project diem up to and including 5.1.3 is affected. Manipulating input to the dmOs::join function in the dmCodeEditor actions file can lead to path traversal (CWE-22). A remote attacker with high privileges can trigger it, and a public exploit has been published. The project was informed early through an issue report but has not responded.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
A flaw has been found in diem-project diem up to 5.1.3. The impacted element is the function dmOs::join of the file dmFrontPlugin/modules/dmCodeEditor/actions/actions.class.php of the component dmCodeEditor. Executing a manipulation can lead to path traversal. The attack can be launched remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| diem-project | diem | 5.1.0; 5.1.1; 5.1.2; 5.1.3 | — | No fix listed | CNA |
- diem Vendordiem-project Affected 5.1.0; 5.1.1; 5.1.2; 5.1.3 Fixed in — No fix listed CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:diem-project:diem:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:diem-project:diem:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
The sources list no fixed version for diem.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-19 Threatist record created from CVE-2026-112138
- 2026-10-19 Alias added: GHSA-46mr-p5vj-rv3q
- 2026-10-20 CISA SSVC decision points changed
- 2026-10-20 Priority changed: LOW → MEDIUM
References
More diem-project vulnerabilities
- TI-2026-58972 diem-project diem dmWidget BasedmWidgetActions.class.php authorization CVSS 4.0MEDIUM 6.9
- TI-2026-76225 Open redirect in diem-project diem Sign-In via Referer argument CVSS 4.0MEDIUM 5.3
- TI-2026-76226 Weak random number generator in diem-project diem dmString.php CVSS 4.0MEDIUM 6.3
- TI-2026-76222 Improper certificate validation in diem Google Analytics Client CVSS 4.0MEDIUM 6.3
- TI-2026-76213 Use of default password in diem-project diem CVSS 4.0MEDIUM 5.3
- TI-2026-58971 diem-project diem dmConsole actions.class.php executeCommand cross-site request forgery CVSS 4.0MEDIUM 5.3
Sources
- CVE-2026-112138 · CVE Program
- CVE-2026-112138 · NVD
- FIRST EPSS
- GHSA-46mr-p5vj-rv3q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences