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CVE-2009-4023

22
FAUCET Score

CVE-2009-4023 describes an argument injection vulnerability in the Mail::Send method within the Mail package 1.1.14 for PEAR, specifically affecting its sendmail implementation. This flaw allows remote attackers to read and write arbitrary files by manipulating the $from parameter. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.1.14CPE matchmatch criteria
cpe:2.3:a:pear:pear:1.1.14:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.40%
Probability of exploitation in next 30 days
EPSS Percentile
82.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0240 is in the 68th percentile among its peer group of 51,551 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2009-4023Important

php-pear-Mail: Absent sanitization of mail header fields

May 7, 2009

References

lists.opensuse.org / opensuse-security-announce/2010-11/msg00001.html
pear.php.net / bugs/bug.php
ExploitPatchVendor Advisory
pear.php.net / bugs/bug.php
PatchVendor Advisory
bugs.gentoo.org / show_bug.cgi
secunia.com / advisories/37410
Vendor Advisory
secunia.com / advisories/37458
exchange.xforce.ibmcloud.com / vulnerabilities/54362
svn.php.net / viewvc/pear/packages/Mail/trunk/Mail/sendmail.php
debian.org / security/2009/dsa-1938
openwall.com / lists/oss-security/2009/11/23/8
securityfocus.com / bid/37081
Patch
vupen.com / english/advisories/2009/3300
Patch