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CVE-2002-1783

22
FAUCET Score

CVE-2002-1783 describes a CRLF injection vulnerability affecting PHP versions 4.2.1 through 4.2.3 when the allow_url_fopen setting is enabled. This flaw allows remote attackers to inject CRLF sequences into arguments passed to fopen or file functions, enabling modification of HTTP headers for outgoing requests. With a CVSS score of 5.0, this vulnerability has a low attack complexity and requires no authentication, potentially leading to integrity impacts. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.0.14CPE matchmatch criteria
cpe:2.3:a:php:php:3.0.14:*:*:*:*:*:*:*
3.0.15CPE matchmatch criteria
cpe:2.3:a:php:php:3.0.15:*:*:*:*:*:*:*
3.0.16CPE matchmatch criteria
cpe:2.3:a:php:php:3.0.16:*:*:*:*:*:*:*
3.0.17CPE matchmatch criteria
cpe:2.3:a:php:php:3.0.17:*:*:*:*:*:*:*
3.0.18CPE matchmatch criteria
cpe:2.3:a:php:php:3.0.18:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
16.74%
Probability of exploitation in next 30 days
EPSS Percentile
96.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1674 is in the 96th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

debianpatch availablevia nvd_reference
View patch

References

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