EIP-2026-100849

PRE-CVE

Mailman 1.x > 2.1.23 - Cross Site Scripting (XSS)

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-100849. PoCs published by Valerio Alessandroni.

AI-analyzed exploit summary This is a reflected XSS exploit for Mailman versions 1.x to 2.1.23. The payload is injected via the user-options URL and requires user interaction (pressing ALT+SHIFT+X) to trigger the XSS.

Description

Mailman 1.x > 2.1.23 - Cross Site Scripting (XSS)

Exploits (1)

exploitdb WORKING POC
by Valerio Alessandroni · textwebappscgi
https://www.exploit-db.com/exploits/48970

This is a reflected XSS exploit for Mailman versions 1.x to 2.1.23. The payload is injected via the user-options URL and requires user interaction (pressing ALT+SHIFT+X) to trigger the XSS.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Mailman >=1.x <=2.1.23
No auth needed
Prerequisites: Valid list name · Valid email address · User interaction to trigger payload
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026