CVE-2015-7808

critical

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.

References

https://www.exploit-db.com/exploits/38629/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-7707

https://blog.sucuri.net/2015/11/vbulletin-exploits-in-the-wild.html

http://pastie.org/pastes/10527766/text?key=wq1hgkcj4afb9ipqzllsq

http://packetstormsecurity.com/files/134331/vBulletin-5.1.2-Unserialize-Code-Execution.html

http://blog.checkpoint.com/2015/11/05/check-point-discovers-critical-vbulletin-0-day/

Details

Source: Mitre, NVD

Published: 2015-11-24

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.80635