CVE-2019-16759

critical

Description

vBulletin 5.x through 5.5.4 allows remote command execution via the widgetConfig[code] parameter in an ajax/render/widget_php routestring request.

References

https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/

https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/

https://www.tenable.com/blog/zero-day-remote-code-execution-vulnerability-in-vbulletin-disclosed

https://www.tenable.com/blog/cve-2020-12720-vbulletin-urges-users-to-patch-undisclosed-security-vulnerability

https://www.tenable.com/blog/objects-in-mirror-are-closer-than-they-appear-reflecting-on-the-cybersecurity-threats-from-2019

https://seclists.org/fulldisclosure/2019/Sep/31

https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/

http://seclists.org/fulldisclosure/2020/Aug/5

http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.html

http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.html

http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.html

http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.html

http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html

http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html

Details

Source: Mitre, NVD

Published: 2019-09-24

Updated: 2025-03-14

Known Exploited Vulnerability (KEV)

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.94429