Is CVE-2012-5223 in the CISA KEV catalog?

No. CVE-2012-5223 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-5223?

CVE-2012-5223 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2012-5223?

CVE-2012-5223 has an EPSS score of 40.53% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2012-5223

HIGHEPSS 98th pctl

7.5

CVSS v2

NVD

Description

The proc_deutf function in includes/functions_vbseocp_abstract.php in vBSEO 3.5.0, 3.5.1, 3.5.2, 3.6.0, and earlier allows remote attackers to insert and execute arbitrary PHP code via "complex curly syntax" in the char_repl parameter, which is inserted into a regular expression that is processed by the preg_replace function with the eval switch.

CWE-94Code Injection

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

40.53%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.