CVE-2005-3883

CVE-2005-3883 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 3% (86th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Php
• Published: 2005-11-29
• Last modified: 2026-06-16

Description

CRLF injection vulnerability in the mb_send_mail function in PHP before 5.1.0 might allow remote attackers to inject arbitrary e-mail headers via line feeds (LF) in the "To" address argument.

Frequently asked questions

What is CVE-2005-3883?

CRLF injection vulnerability in the mb_send_mail function in PHP before 5.1.0 might allow remote attackers to inject arbitrary e-mail headers via line feeds (LF) in the "To" address argument.

How severe is CVE-2005-3883?

CVE-2005-3883 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2005-3883 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-3883?

CVE-2005-3883 primarily affects Php. In total, 36 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-3883?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2005-3883 published?

CVE-2005-3883 was published on 2005-11-29 and last updated on 2026-06-16.

References

• ftp://patches.sgi.com/support/free/security/advisories/20060501-01-U.asc
• http://bugs.php.net/bug.php?id=35307
• http://rhn.redhat.com/errata/RHSA-2006-0276.html
• http://secunia.com/advisories/17763
• http://secunia.com/advisories/18054
• http://secunia.com/advisories/18198
• http://secunia.com/advisories/19832
• http://secunia.com/advisories/20210
• http://secunia.com/advisories/20951
• http://securitytracker.com/id?1015296
• http://support.avaya.com/elmodocs2/security/ASA-2006-129.htm
• http://www.mandriva.com/security/advisories?name=MDKSA-2005:238
• http://www.php.net/release_5_1_0.php
• http://www.securityfocus.com/archive/1/419504/100/0/threaded
• http://www.securityfocus.com/bid/15571
• http://www.turbolinux.com/security/2006/TLSA-2006-38.txt
• http://www.vupen.com/english/advisories/2006/2685
• https://exchange.xforce.ibmcloud.com/vulnerabilities/23270
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10332
• https://www.ubuntu.com/usn/usn-232-1/

Affected products (36)

• cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.7:rc1:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.7:rc2:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.0.7:rc3:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.2:*:dev:*:*:*:*:*
• cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.4:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.5:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.6:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.7:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.8:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.9:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.10:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.3.11:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:4.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.0:rc3:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.0.5:*:*:*:*:*:*:*

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• CVE-2009-4143 — Critical (CVSS 10.0): PHP before 5.2.12 does not properly handle session data, which has unspecified impact and attack vectors related to (1)…
• CVE-2008-5557 — Critical (CVSS 10.0): Heap-based buffer overflow in ext/mbstring/libmbfl/filters/mbfilter_htmlent.c in the mbstring extension in PHP 4.3.0…

All CVEs affecting Php →

Threat intelligence

Threat-intel indicators referencing this CVE:

• 90.160.135.217 (ipv4-addr)
• 62.36.19.42 (ipv4-addr)
• 62.36.19.41 (ipv4-addr)