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CVE-2012-5159

83
FAUCET Score

CVE-2012-5159 describes a Trojan Horse vulnerability in phpMyAdmin 3.5.2.2, specifically within the server_sync.php file, which was distributed via a compromised cdnetworks-kr-1 mirror. This flaw allows remote attackers to execute arbitrary PHP code through an eval injection. The vulnerability is rated with a CVSS score of 7.5, indicating high severity due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. Exploit intelligence confirms the existence of a Metasploit module and an ExploitDB entry, indicating readily available exploit code. While not on the KEV catalog, its high EPSS score and community discussion suggest significant attention and a high likelihood of exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
3.5.2.2CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:3.5.2.2:*:*:*:*:*:*:*

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
74.52%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: phpMyAdmin 3.5.2.2 server_sync.php Backdoor · Sep 25, 2012
ExploitDB: EDB-21834 · Oct 10, 2012
This CVE's current EPSS score of 0.7451 is in the 99th percentile among its peer group of 51,466 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

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

Remediation

Remediation records are not available for this CVE.

References

seclists.org / oss-sec/2012/q3/562
sourceforge.net / blog/phpmyadmin-back-door
phpmyadmin.net / home_page/security/PMASA-2012-5.php
Vendor Advisory
securityfocus.com / bid/55672