EIP-2026-109715

PRE-CVE

MyBB Forums 1.8.2 - Persistent Cross-Site Scripting

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-109715. PoCs published by Avinash Thapa.

AI-analyzed exploit summary This exploit demonstrates a stored XSS vulnerability in MyBB 1.8.2 by injecting malicious JavaScript into the 'Custom User Title' field, which executes when viewed in the calendar event page. The PoC includes detailed HTTP request/response examples and step-by-step reproduction instructions.

Description

MyBB Forums 1.8.2 - Persistent Cross-Site Scripting

Exploits (1)

exploitdb WORKING POC VERIFIED
by Avinash Thapa · textwebappsphp
https://www.exploit-db.com/exploits/35266

This exploit demonstrates a stored XSS vulnerability in MyBB 1.8.2 by injecting malicious JavaScript into the 'Custom User Title' field, which executes when viewed in the calendar event page. The PoC includes detailed HTTP request/response examples and step-by-step reproduction instructions.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: MyBB 1.8.2
Auth required
Prerequisites: Valid user account on the MyBB forum · Access to the 'Edit Profile' section
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026