EIP-2026-104251

PRE-CVE

Flash Tag Cloud And MT-Cumulus Plugin - 'tagcloud' Cross-Site Scripting

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-104251. PoCs published by MustLive.

AI-analyzed exploit summary The exploit demonstrates a cross-site scripting (XSS) vulnerability in Flash Tag Cloud widget and MT-Cumulus Plugin by injecting malicious JavaScript via the 'tagcloud' parameter in the SWF file URL. The payload executes arbitrary script code in the context of the affected site, potentially stealing cookie-based authentication credentials.

Description

Flash Tag Cloud And MT-Cumulus Plugin - 'tagcloud' Cross-Site Scripting

Exploits (1)

exploitdb WORKING POC VERIFIED
by MustLive · textwebappsmultiple
https://www.exploit-db.com/exploits/35743

The exploit demonstrates a cross-site scripting (XSS) vulnerability in Flash Tag Cloud widget and MT-Cumulus Plugin by injecting malicious JavaScript via the 'tagcloud' parameter in the SWF file URL. The payload executes arbitrary script code in the context of the affected site, potentially stealing cookie-based authentication credentials.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Flash Tag Cloud For MT 4, MT-Cumulus 1.02 and prior versions
No auth needed
Prerequisites: Access to the vulnerable SWF file URL · User interaction (clicking the malicious link)
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026