CVE-2002-1783

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 16.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2002-12-31 · updated 2026-06-16

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.

Affected products

PHP: 3.0.14, 3.0.15, 3.0.16, 3.0.17, 3.0.18, 4.0.3 (+11)

References

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

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