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CVE-2012-5223

63
FAUCET Score

CVE-2012-5223 describes a critical remote PHP code injection vulnerability in vBSEO versions 3.5.0 through 3.6.0. Attackers can exploit a flaw in the proc_deutf function by injecting arbitrary PHP code through "complex curly syntax" within the char_repl parameter, which is then evaluated by preg_replace. This vulnerability carries a high CVSS score of 7.5, indicating a network-based attack with low complexity and potential for complete compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV, a Metasploit module and ExploitDB entry confirm the availability of exploit code, yet there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.6.0CPE matchmatch criteria
cpe:2.3:a:crawlability:vbseo:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:crawlability:vbseo:2.0.0:*:*:*:*:*:*:*
2.1.0CPE matchmatch criteria
cpe:2.3:a:crawlability:vbseo:2.1.0:*:*:*:*:*:*:*
2.1.1CPE matchmatch criteria
cpe:2.3:a:crawlability:vbseo:2.1.1:*:*:*:*:*:*:*
2.2.0CPE matchmatch criteria
cpe:2.3:a:crawlability:vbseo:2.2.0:*:*:*:*:*:*:*

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
40.53%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: vBSEO proc_deutf() Remote PHP Code Injection · Jan 23, 2012
ExploitDB: EDB-18424 · Jan 27, 2012
This CVE's current EPSS score of 0.4053 is in the 97th percentile among its peer group of 51,455 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

Remediation records are not available for this CVE.

References

osvdb.org / 78508
secunia.com / advisories/47699
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/72689
exploit-db.com / exploits/18424
Exploit
securityfocus.com / bid/51647
vbseo.com / f5/vbseo-security-bulletin-all-supported-versions-patch-release-52783
ExploitPatchVendor Advisory