CVE-2009-4813

MyBB 1.4.10 - Cross-Site Scripting via Username Parameter in Donate Action

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-4813. PoCs published by Steven Abbagnaro.

AI-analyzed exploit summary This exploit demonstrates a cross-site scripting (XSS) vulnerability in MyBB 1.4.10 by injecting malicious input into the 'username' parameter of the 'myps.php' script. The PoC shows how an attacker can execute arbitrary script code in the context of the affected site.

Description

Cross-site scripting (XSS) vulnerability in myps.php in MyBB (aka MyBulletinBoard) 1.4.10 allows remote attackers to inject arbitrary web script or HTML via the username parameter in a donate action.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Steven Abbagnaro · textwebappsphp
https://www.exploit-db.com/exploits/33439

This exploit demonstrates a cross-site scripting (XSS) vulnerability in MyBB 1.4.10 by injecting malicious input into the 'username' parameter of the 'myps.php' script. The PoC shows how an attacker can execute arbitrary script code in the context of the affected site.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: MyBB 1.4.10
No auth needed
Prerequisites: Access to the vulnerable MyBB instance
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/37910
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/10622
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/37464
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/61298

Scores

EPSS 0.0190
EPSS Percentile 83.5%

Details

CWE
CWE-79
Status published
Products (1)
mybb/mybb 1.4.10
Published Apr 27, 2010
Tracked Since Feb 18, 2026