CVE-2002-1783

Name: CVE-2002-1783
Creator: NVD / NIST
Published: 2002-12-31T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 16.74%

Last modified Jun 16, 2026

CVE-2002-1783 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 16.74% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

16.74%

96.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Php	Php	3.0.14
Php	Php	3.0.15
Php	Php	3.0.16
Php	Php	3.0.17
Php	Php	3.0.18
Php	Php	4.0.3
Php	Php	4.0.4
Php	Php	4.0.5
Php	Php	4.0.6
Php	Php	4.0.7
Php	Php	4.1.0
Php	Php	4.1.1
Php	Php	4.1.2
Php	Php	4.2.0
Php	Php	4.2.1
Php	Php	4.2.2
Php	Php	4.2.3

References

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

Timeline

Published: Dec 31, 2002
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2002-1783?

How severe is CVE-2002-1783?

Severity scoring for CVE-2002-1783 is pending analysis. The EPSS model estimates a 16.74% probability of exploitation in the next 30 days.

How do I fix CVE-2002-1783?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2002-1783?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST