SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2012-5223

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…

EXPLOIT ✓HIGH 7.5EPSS 40.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 40.5%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 2.0
7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
40.53% probability · 99th percentile
Public exploits
1 in Exploit-DB · verified · first 27 January 2012
CISA KEV
Not listed
Weakness
CWE-94
Affected
crawlability/vbseo
Source
cve@mitre.org
EPSS trend
0%23%45%4 November 2026: 40.53%4 November 20264 November 2026

EPSS 40.5% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-18424source ↗vBSEO 3.6.0 - 'proc_deutf()' Remote PHP Code Injection (Metasploit)php · EgiXwebapps27 January 2012yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.