CVE-2012-5223

Exp

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.

Published: 2012-10-01 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-5223 is rated High Exploit Risk (74.5/100): CVSS High severity, with high exploitation likelihood (EPSS 40.53%, 98th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2012-5223

EDB-ID Source Kind Published Link
18424 exploit_db edb 2012-01-27 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2012-5223

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 79.64% 40.53% -39.11%
2 2025-05-26 77.33% 79.64% +2.31%
3 2025-03-30 — 77.33% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-5223

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2012-5223

Affected software / configurations for CVE-2012-5223

Vendor Product Version Raw CPE
crawlability vbseo <= 3.6.0 cpe:2.3:a:crawlability:vbseo:*:*:*:*:*:*:*:*
crawlability vbseo 2.0.0 cpe:2.3:a:crawlability:vbseo:2.0.0:*:*:*:*:*:*:*
crawlability vbseo 2.1.0 cpe:2.3:a:crawlability:vbseo:2.1.0:*:*:*:*:*:*:*
crawlability vbseo 2.1.1 cpe:2.3:a:crawlability:vbseo:2.1.1:*:*:*:*:*:*:*
crawlability vbseo 2.2.0 cpe:2.3:a:crawlability:vbseo:2.2.0:*:*:*:*:*:*:*
crawlability vbseo 2.3.0 cpe:2.3:a:crawlability:vbseo:2.3.0:*:*:*:*:*:*:*
crawlability vbseo 2.4.0 cpe:2.3:a:crawlability:vbseo:2.4.0:*:*:*:*:*:*:*
crawlability vbseo 2.4.5 cpe:2.3:a:crawlability:vbseo:2.4.5:*:*:*:*:*:*:*
crawlability vbseo 3.0.0 cpe:2.3:a:crawlability:vbseo:3.0.0:*:*:*:*:*:*:*
crawlability vbseo 3.0.0 cpe:2.3:a:crawlability:vbseo:3.0.0:rc2:*:*:*:*:*:*
crawlability vbseo 3.0.0 cpe:2.3:a:crawlability:vbseo:3.0.0:rc3:*:*:*:*:*:*
crawlability vbseo 3.0.0 cpe:2.3:a:crawlability:vbseo:3.0.0:rc4:*:*:*:*:*:*
crawlability vbseo 3.0.0 cpe:2.3:a:crawlability:vbseo:3.0.0:rc5:*:*:*:*:*:*
crawlability vbseo 3.0.0 cpe:2.3:a:crawlability:vbseo:3.0.0:rc6:*:*:*:*:*:*
crawlability vbseo 3.1.0 cpe:2.3:a:crawlability:vbseo:3.1.0:*:*:*:*:*:*:*
crawlability vbseo 3.2.0 cpe:2.3:a:crawlability:vbseo:3.2.0:*:*:*:*:*:*:*
crawlability vbseo 3.2.0 cpe:2.3:a:crawlability:vbseo:3.2.0:rc4:*:*:*:*:*:*
crawlability vbseo 3.2.0 cpe:2.3:a:crawlability:vbseo:3.2.0:rc5:*:*:*:*:*:*
crawlability vbseo 3.2.0 cpe:2.3:a:crawlability:vbseo:3.2.0:rc7:*:*:*:*:*:*
crawlability vbseo 3.2.0 cpe:2.3:a:crawlability:vbseo:3.2.0:rc8:*:*:*:*:*:*
crawlability vbseo 3.3.0 cpe:2.3:a:crawlability:vbseo:3.3.0:*:*:*:*:*:*:*
crawlability vbseo 3.3.0 cpe:2.3:a:crawlability:vbseo:3.3.0:rc1:*:*:*:*:*:*
crawlability vbseo 3.3.0 cpe:2.3:a:crawlability:vbseo:3.3.0:rc2:*:*:*:*:*:*
crawlability vbseo 3.3.1 cpe:2.3:a:crawlability:vbseo:3.3.1:*:*:*:*:*:*:*
crawlability vbseo 3.5.0 cpe:2.3:a:crawlability:vbseo:3.5.0:*:*:*:*:*:*:*
crawlability vbseo 3.5.0 cpe:2.3:a:crawlability:vbseo:3.5.0:beta1:*:*:*:*:*:*
crawlability vbseo 3.5.0 cpe:2.3:a:crawlability:vbseo:3.5.0:beta2:*:*:*:*:*:*
crawlability vbseo 3.5.0 cpe:2.3:a:crawlability:vbseo:3.5.0:rc1:*:*:*:*:*:*
crawlability vbseo 3.5.0 cpe:2.3:a:crawlability:vbseo:3.5.0:rc2:*:*:*:*:*:*
crawlability vbseo 3.5.0 cpe:2.3:a:crawlability:vbseo:3.5.0:rc3:*:*:*:*:*:*
crawlability vbseo 3.5.1 cpe:2.3:a:crawlability:vbseo:3.5.1:*:*:*:*:*:*:*
crawlability vbseo 3.5.2 cpe:2.3:a:crawlability:vbseo:3.5.2:*:*:*:*:*:*:*
crawlability vbseo 3.6.0 cpe:2.3:a:crawlability:vbseo:3.6.0:beta1:*:*:*:*:*:*
crawlability vbseo 3.6.0 cpe:2.3:a:crawlability:vbseo:3.6.0:rc1:*:*:*:*:*:*
crawlability vbseo 3.6.0 cpe:2.3:a:crawlability:vbseo:3.6.0:rc2:*:*:*:*:*:*

References for CVE-2012-5223

cvelogic Threat Intelligence