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Path traversal in westboy CicadasCMS Backend Template Editor

Priority MEDIUM 56CWE-22Published · Updated

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

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00388 33rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
westboyCicadasCMS2431154dac8d0735e04f1fd2a3c3556668fc8dab—No fix listedCNA
  • CicadasCMS Vendorwestboy Affected 2431154dac8d0735e04f1fd2a3c3556668fc8dab Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:westboy:cicadascms:*:*:*:*:*:*:*:*——westboy
  • cpe:2.3:a:westboy:cicadascms:*:*:*:*:*:*:*:* Versions — — ·westboy

Remediation

The sources list no fixed version for CicadasCMS.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-108790
  2. 2026-10-12 Alias added: GHSA-r594-rf5q-r69h
  3. 2026-10-16 CISA SSVC decision points changed
  4. 2026-10-16 Priority changed: LOW → MEDIUM

References

  • 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
See all 12 →

Sources