Path traversal in westboy CicadasCMS Backend Template Editor
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
westboy CicadasCMS up to and including commit 2431154dac8d0735e04f1fd2a3c3556668fc8dab has a path traversal flaw (CWE-22) in the Backend Template Editor, in the TemplateController.save function. A remote attacker with high privileges can exploit it without user interaction. A public exploit has been released and is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
A security flaw has been discovered in westboy CicadasCMS up to 2431154dac8d0735e04f1fd2a3c3556668fc8dab. This impacts the function TemplateController.save of the file /system/cms/template/save of the component Backend Template Editor. The manipulation results in path traversal. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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
Remediation
The sources list no fixed version for CicadasCMS.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-12 Threatist record created from CVE-2026-108790
- 2026-10-12 Alias added: GHSA-r594-rf5q-r69h
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-16 Priority changed: LOW → MEDIUM
References
More westboy vulnerabilities
- TI-2026-70826 Path traversal in westboy CicadasCMS Template Management CVSS 4.0MEDIUM 5.3
- TI-2026-08891 westboy CicadasCMS AbstractCacheManager.java search cross site scripting CVSS 4.0MEDIUM 5.3
- TI-2025-03154 westboy CicadasCMS JSP Parser upload unrestricted upload CVSS 4.0MEDIUM 5.3
- TI-2025-02291 westboy CicadasCMS page sql injection CVSS 4.0MEDIUM 5.3
- TI-2025-02290 westboy CicadasCMS save sql injection CVSS 4.0MEDIUM 5.3
- TI-2025-03366 westboy CicadasCMS Scheduled Task save os command injection CVSS 4.0MEDIUM 5.1
Sources
- CVE-2026-108790 · CVE Program
- CVE-2026-108790 · NVD
- FIRST EPSS
- GHSA-r594-rf5q-r69h · 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