#VU110514 Input validation error in PHP - CVE-2004-1020 

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Main Vulnerability Database Vulnerabilities #VU110514

#VU110514 Input validation error in PHP - CVE-2004-1020

Published: July 11, 2017 / Updated: June 9, 2025


Vulnerability identifier: #VU110514
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2004-1020
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vulnerable software:
PHP
Software vendor:
PHP Group

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The addslashes function in PHP 4.3.9 does not properly escape a NULL (/0) character, which may allow remote attackers to read arbitrary files in PHP applications that contain a directory traversal vulnerability in require or include statements, but are otherwise protected by the magic_quotes_gpc mechanism. NOTE: this issue was originally REJECTed by its CNA before publication, but that decision is in active dispute. This candidate may change significantly in the future as a result of further discussion.


Remediation

Install update from vendor's website.

External links