CVE-2004-2509

UBB.threads 6.2.3 and 6.5 - Cross-Site Scripting via Cat Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2004-2509. PoCs published by dw. & ms..

AI-analyzed exploit summary The provided text describes a cross-site scripting (XSS) vulnerability in UBB.threads versions 6.2.3 and 6.5, where user-supplied URI input is not properly sanitized. The example URI demonstrates how an attacker could inject malicious script code via the 'Cat' parameter.

Description

Cross-site scripting (XSS) vulnerabilities in (1) calendar.php, (2) login.php, and (3) online.php in Infopop UBB.Threads 6.2.3 and 6.5 allow remote attackers to inject arbitrary web script or HTML via the Cat parameter.

Exploits (3)

exploitdb WRITEUP VERIFIED
by dw. & ms. · textwebappsphp
https://www.exploit-db.com/exploits/24827

The provided text describes a cross-site scripting (XSS) vulnerability in UBB.threads versions 6.2.3 and 6.5, where user-supplied URI input is not properly sanitized. The example URI demonstrates how an attacker could inject malicious script code via the 'Cat' parameter.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Theoretical
Target: UBB.threads 6.2.3, 6.5
No auth needed
Prerequisites: Victim must click a malicious link
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WRITEUP VERIFIED
by dw. & ms. · textwebappsphp
https://www.exploit-db.com/exploits/24826

The provided text describes a cross-site scripting (XSS) vulnerability in UBB.threads versions 6.2.3 and 6.5, where user-supplied URI input is not properly sanitized, allowing remote attackers to inject malicious HTML or script code.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Theoretical
Target: UBB.threads 6.2.3, 6.5
No auth needed
Prerequisites: A vulnerable version of UBB.threads · A victim user to click on a malicious link
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WRITEUP VERIFIED
by dw. & ms. · textwebappsphp
https://www.exploit-db.com/exploits/24825

The provided text describes a cross-site scripting (XSS) vulnerability in UBB.threads versions 6.2.3 and 6.5, where user-supplied URI input is not properly sanitized. The vulnerability allows remote attackers to inject malicious HTML or script code via crafted links.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Theoretical
Target: UBB.threads 6.2.3, 6.5
No auth needed
Prerequisites: Victim must click a malicious link
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (8)

Core 8
Core References
Patch vdb-entry x_refsource_osvdb
http://www.osvdb.org/12366
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/11900
Exploit vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1012503
Patch vdb-entry x_refsource_osvdb
http://www.osvdb.org/12365
Patch vdb-entry x_refsource_osvdb
http://www.osvdb.org/12367
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/13452
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/18432

Scores

EPSS 0.0223
EPSS Percentile 80.6%

Details

Status published
Products (2)
ubbcentral/ubb.threads 6.2.3
ubbcentral/ubb.threads 6.5
Published Dec 31, 2004
Tracked Since Feb 18, 2026