CVE-2012-4873

GNUBoard < 4.34 - Cross-Site Scripting via File Download Filename Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2012-4873. PoCs published by wh1ant.

AI-analyzed exploit summary This exploit demonstrates an HTML-injection vulnerability in Gnuboard versions prior to 4.34.21. The vulnerability allows attacker-supplied HTML and script code to execute in the context of the affected website, potentially leading to cookie theft or site rendering manipulation.

Description

Cross-site scripting (XSS) vulnerability in the file_download function in GNUBoard before 4.34.21 allows remote attackers to inject arbitrary web script or HTML via the filename parameter.

Exploits (1)

exploitdb WORKING POC VERIFIED
by wh1ant · textwebappsphp
https://www.exploit-db.com/exploits/36973

This exploit demonstrates an HTML-injection vulnerability in Gnuboard versions prior to 4.34.21. The vulnerability allows attacker-supplied HTML and script code to execute in the context of the affected website, potentially leading to cookie theft or site rendering manipulation.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Gnuboard < 4.34.21
No auth needed
Prerequisites: Ability to upload a file to the BBS
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/48458
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/52622
Various Sources x_refsource_confirm
http://sir.co.kr/bbs/board.php?bo_table=g4_pds&wr_id=7156
Exploit, Third Party Advisory exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/18627

Scores

EPSS 0.0163
EPSS Percentile 73.1%

Details

CWE
CWE-79
Status published
Products (1)
sir/gnuboard < 4.34
Published Sep 06, 2012
Tracked Since Feb 18, 2026