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CVE-2008-4107

16
FAUCET Score

CVE-2008-4107 describes a weakness in the rand and mt_rand functions in PHP 5.2.6, which generate cryptographically weak random numbers. This vulnerability can be exploited in products relying on these functions for security, exemplified by password reset mechanisms in Joomla! 1.5.x and WordPress before 2.6.2. The CVSS score of 5.1 indicates a medium severity, with a network attack vector and high access complexity, potentially leading to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.4.8CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:beta1:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:beta3:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:rc1:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.1MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.01%
Probability of exploitation in next 30 days
EPSS Percentile
86.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0301 is in the 79th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Vendor Advisories (1)

redhatCVE-2008-4107Moderate

PHP: insecure random numbers

Sep 11, 2008

References

marc.info
osvdb.org / 48700
secunia.com / advisories/31737
Vendor Advisory
secunia.com / advisories/31870
Vendor Advisory
securityreason.com / securityalert/4271
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/45956
redhat.com / archives/fedora-package-announce/2008-September/msg00607.html
redhat.com / archives/fedora-package-announce/2008-September/msg00629.html
wordpress.org / development/2008/09/wordpress-262
openwall.com / lists/oss-security/2008/09/11/6
securityfocus.com / archive/1/496237/100/0/threaded
securityfocus.com / archive/1/496287/100/0/threaded
securityfocus.com / bid/31115
sektioneins.de / advisories/SE-2008-02.txt
sektioneins.de / advisories/SE-2008-04.txt
sektioneins.de / advisories/SE-2008-05.txt
suspekt.org / 2008/08/17/mt_srand-and-not-so-random-numbers
vupen.com / english/advisories/2008/2553