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CVE-2006-5178

25
FAUCET Score

CVE-2006-5178 describes a race condition in the symlink function of PHP versions 5.1.6 and earlier. This flaw allows local users to bypass the open_basedir restriction by manipulating symlinks, mkdir, and unlink functions to alter a file path after initial security checks but before the file is opened. The vulnerability carries a CVSS score of 6.2 (medium severity) due to its local attack vector, high attack complexity, and complete compromise of confidentiality, integrity, and availability. While no active exploitation is noted in KEV or Hot List, an ExploitDB entry exists for PHP 5.2.12/5.3.1, and there is no significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.1.6CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:a:php:php:4.0.1:patch1:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:a:php:php:4.0.1:patch2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.2MEDIUM

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-10557 · Dec 19, 2009
This CVE's current EPSS score of 0.0068 is in the 84th percentile among its peer group of 1,595 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 0.1 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-2006-5178

CVE-2006-5178

References

lists.grok.org.uk / pipermail/full-disclosure/2006-October/049850.html
Exploit
secunia.com / advisories/22235
ExploitVendor Advisory
secunia.com / advisories/22424
securityreason.com / securityalert/1692
securitytracker.com / id
Exploit
exchange.xforce.ibmcloud.com / vulnerabilities/29340
hardened-php.net / advisory_082006.132.html
ExploitVendor Advisory
mandriva.com / security/advisories
neosecurityteam.net / index.php
securityfocus.com / archive/1/447649/100/0/threaded
securityfocus.com / archive/1/448020/100/0/threaded
securityfocus.com / archive/1/448953/100/0/threaded
securityfocus.com / bid/20326
Exploit
turbolinux.com / security/2006/TLSA-2006-38.txt
vupen.com / english/advisories/2006/3901