CVE-2000-0853

YaBB Bulletin Board 9.1.2000 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2000-0853. PoCs published by pestilence.

AI-analyzed exploit summary This exploit leverages a directory traversal vulnerability in YaBB.pl due to insufficient input validation, allowing an attacker to read arbitrary files accessible to the web server by manipulating the 'num' parameter with relative paths and null byte injection.

Description

YaBB Bulletin Board 9.1.2000 allows remote attackers to read arbitrary files via a .. (dot dot) attack.

Exploits (1)

exploitdb WORKING POC VERIFIED
by pestilence · textremotecgi
https://www.exploit-db.com/exploits/20218

This exploit leverages a directory traversal vulnerability in YaBB.pl due to insufficient input validation, allowing an attacker to read arbitrary files accessible to the web server by manipulating the 'num' parameter with relative paths and null byte injection.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: YaBB.pl (version not specified)
No auth needed
Prerequisites: Access to the YaBB.pl script on a vulnerable server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Patch, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/1668
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/5254
Vendor Advisory mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2000-09/0072.html

Scores

EPSS 0.0757
EPSS Percentile 93.8%

Details

Status published
Products (1)
yabb/yabb 2000-09-01
Published Nov 14, 2000
Tracked Since Feb 18, 2026