EIP-2026-112040

PRE-CVE

Siena CMS 1.242 - 'err' Cross-Site Scripting

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-112040. PoCs published by Net.Edit0r.

AI-analyzed exploit summary The provided text describes a cross-site scripting (XSS) vulnerability in Siena CMS 1.242, where insufficient sanitization of user-supplied data allows arbitrary script execution in the context of the affected site. The vulnerability can be exploited via the 'err' parameter in the URL.

Description

Siena CMS 1.242 - 'err' Cross-Site Scripting

Exploits (1)

exploitdb WRITEUP VERIFIED
by Net.Edit0r · textwebappsphp
https://www.exploit-db.com/exploits/36482

The provided text describes a cross-site scripting (XSS) vulnerability in Siena CMS 1.242, where insufficient sanitization of user-supplied data allows arbitrary script execution in the context of the affected site. The vulnerability can be exploited via the 'err' parameter in the URL.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Siena CMS 1.242
No auth needed
Prerequisites: Access to the target URL with the vulnerable parameter
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026