Vulnerability · Published Oct 12, 2026 · Assigned by VulDB

CVE-2026-108790westboy CicadasCMS Backend Template Editor save TemplateController.save path traversal

Medium 4.7

In plain English

A medium-severity path traversal in CicadasCMS from westboy. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)4.7Medium

Exploit odds (30 days)0.4%top 66.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
westboy	CicadasCMS	2431154dac8d0735e04f1fd2a3c3556668fc8dab

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C

References

VDB-416569 | westboy CicadasCMS Backend Template Editor save TemplateController.save path traversal vdb-entry, technical-description
VDB-416569 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-108790 | CVE Analysis and Report third-party-advisory
Submit #959802 | westboy CicadasCMS 2431154dac8d0735e04f1fd2a3c3556668fc8dab Unrestricted File Write third-party-advisory
https://github.com/wawyw/cve_report/blob/main/CicadasCMS_1.md exploit