SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-7808

The vB_Api_Hook::decodeArguments method in vBulletin 5 Connect 5.1.2 through 5.1.9 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via a crafted serialized object in the arguments parameter to…

EXPLOIT ×3 ✓HIGH 7.5EPSS 80.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 80.6%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

The vB_Api_Hook::decodeArguments method in vBulletin 5 Connect 5.1.2 through 5.1.9 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via a crafted serialized object in the arguments parameter to ajax/api/hook/decodeArguments.

CVSS 2.0
7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
80.64% probability · 100th percentile
Public exploits
3 in Exploit-DB · verified · first 5 November 2015
CISA KEV
Not listed
Weakness
CWE-20
Affected
vbulletin/vbulletin
Source
cve@mitre.org
EPSS trend
0%43%85%4 November 2026: 80.64%4 November 20264 November 2026

EPSS 80.6% 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 (3)

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-48761source ↗vBulletin 5.1.2 < 5.1.9 - Unserialize Code Execution (Metasploit)php · Metasploitwebapps24 July 2017no
EDB-38790source ↗vBulletin 5.x - Remote Code Executionphp · Mohammad Reza Esparghamwebapps23 November 2015yes
EDB-38629source ↗vBulletin 5.1.x - Remote Code Executionphp · hhjjwebapps5 November 2015yes

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