CVE-2012-6513

gpEasy CMS 2.3.3 - Cross-Site Scripting via jsoncallback Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2012-6513. PoCs published by Jakub Galczyk.

AI-analyzed exploit summary This exploit demonstrates a cross-site scripting (XSS) vulnerability in gpEasy by injecting arbitrary script code via the 'jsoncallback' parameter in the Admin_Preferences endpoint. The vulnerability arises due to insufficient input sanitization.

Description

Cross-site scripting (XSS) vulnerability in index.php/Admin_Preferences in gpEasy CMS 2.3.3 allows remote attackers to inject arbitrary web script or HTML via the jsoncallback parameter.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Jakub Galczyk · textwebappsphp
https://www.exploit-db.com/exploits/37104

This exploit demonstrates a cross-site scripting (XSS) vulnerability in gpEasy by injecting arbitrary script code via the 'jsoncallback' parameter in the Admin_Preferences endpoint. The vulnerability arises due to insufficient input sanitization.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: gpEasy 2.3.3
No auth needed
Prerequisites: Access to the target gpEasy application
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/48994
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/53269

Scores

EPSS 0.0161
EPSS Percentile 72.8%

Details

CWE
CWE-79
Status published
Products (1)
gpeasy/gpeasy_cms 2.3.3
Published Jan 24, 2013
Tracked Since Feb 18, 2026