westboy CicadasCMS up to 2431154dac8d0735e04f1fd2a3c3556668fc8dab Backend Template Editor save TemplateController.save path traversal

Summaryinfo

A vulnerability classified as problematic has been found in westboy CicadasCMS up to 2431154dac8d0735e04f1fd2a3c3556668fc8dab. Affected is the function TemplateController.save of the file /system/cms/template/save of the component Backend Template Editor. This manipulation causes path traversal. The identification of this vulnerability is CVE-2026-108790. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability has been found in westboy CicadasCMS up to 2431154dac8d0735e04f1fd2a3c3556668fc8dab and classified as problematic. Affected by this vulnerability is the function TemplateController.save of the file /system/cms/template/save of the component Backend Template Editor. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-108790. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are needed for exploitation. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• westboy

Name

• CicadasCMS

Version

• 2431154dac8d0735e04f1fd2a3c3556668fc8dab

CPE 2.3info

• 🔒

CPE 2.2info

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Submitinfo

Accepted

• Submit #959802: westboy CicadasCMS 2431154dac8d0735e04f1fd2a3c3556668fc8dab Unrestricted File Write (by wenyouwen)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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