EIP-2026-103566

PRE-CVE

Mozilla Firefox 2.0.0.7 - Malformed XBL Constructor Remote Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103566. PoCs published by Soroush Dalili.

AI-analyzed exploit summary This exploit demonstrates a denial-of-service vulnerability in Mozilla Firefox <= 2.0.0.7 by leveraging a malformed XBL binding with a JavaScript constructor that crashes the browser. The PoC includes both HTML and XML files required to trigger the vulnerability.

Description

Mozilla Firefox 2.0.0.7 - Malformed XBL Constructor Remote Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by Soroush Dalili · htmldosmultiple
https://www.exploit-db.com/exploits/30702

This exploit demonstrates a denial-of-service vulnerability in Mozilla Firefox <= 2.0.0.7 by leveraging a malformed XBL binding with a JavaScript constructor that crashes the browser. The PoC includes both HTML and XML files required to trigger the vulnerability.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Mozilla Firefox <= 2.0.0.7
No auth needed
Prerequisites: Victim must open the malicious HTML file in a vulnerable Firefox version
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026