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Vulnerability record · CVE-2002-1783 · published 31 December 2002

CVE-2002-1783: Php vulnerability

Php · Php

CRLF injection vulnerability in PHP 4.2.1 through 4.2.3, when allow_url_fopen is enabled, allows remote attackers to modify HTTP headers for outgoing requests by causing CRLF sequences to be injected into arguments that are passed to the (1) fopen or (2) file functions.

5.0 CVSS 2.0 Medium EPSS 17% · top 3.1%
5.0CVSS 2.0 base score
17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
16 Jun 2026Last modified by NVD

Description

CRLF injection vulnerability in PHP 4.2.1 through 4.2.3, when allow_url_fopen is enabled, allows remote attackers to modify HTTP headers for outgoing requests by causing CRLF sequences to be injected into arguments that are passed to the (1) fopen or (2) file functions.

AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2002-09/0086.html Vendor Advisory
http://archives.neohapsis.com/archives/bugtraq/2002-09/0132.html Patch
http://www.debian.org/security/2002/dsa-168 PatchVendor Advisory
http://www.securityfocus.com/bid/5681 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/10080
http://archives.neohapsis.com/archives/bugtraq/2002-09/0086.html Vendor Advisory
http://archives.neohapsis.com/archives/bugtraq/2002-09/0132.html Patch
http://www.debian.org/security/2002/dsa-168 PatchVendor Advisory
http://www.securityfocus.com/bid/5681 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/10080

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2002-1783), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.