CVE-2019-16759
Published 2019-09-24 · Updated 2026-06-17 · Source cve@mitre.org
Summary
CVE-2019-16759 is a critical-severity (CVSS 9.8) vulnerability in vBulletin vBulletin. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA does not currently list it as used in ransomware campaigns. vBulletin has 2 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 2 known-exploited vBulletin vulnerabilities →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.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: vBulletin — vBulletin
Name: vBulletin PHP Module Remote Code Execution Vulnerability
Date added: 2021-11-03 · Due: 2022-05-03
Required action: Apply updates per vendor instructions.
References
- http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html
- http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.html
- http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.html
- http://seclists.org/fulldisclosure/2020/Aug/5
- https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/

