CVE-2019-16759
CRITICALCVSS 9.8/10Actively ExploitedEPSS 99.73%
Last modified
CVE-2019-16759 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. vBulletin 5.x through 5.5.4 allows remote command execution via the widgetConfig[code] parameter in an ajax/render/widget_php routestring request.. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.73% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vbulletin | Vbulletin | >= 5.0.0, <= 5.5.4 |
References
- http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Aug/5Exploit, Mailing List, Third Party Advisory
- https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/Exploit, Press/Media Coverage, Third Party Advisory
- https://seclists.org/fulldisclosure/2019/Sep/31Exploit, Mailing List, Third Party Advisory
- https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/Press/Media Coverage, Third Party Advisory
- http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Aug/5Exploit, Mailing List, Third Party Advisory
- https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/Exploit, Press/Media Coverage, Third Party Advisory
- https://seclists.org/fulldisclosure/2019/Sep/31Exploit, Mailing List, Third Party Advisory
- https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/Press/Media Coverage, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16759US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2019-16759?
vBulletin 5.x through 5.5.4 allows remote command execution via the widgetConfig[code] parameter in an ajax/render/widget_php routestring request.
How severe is CVE-2019-16759?
CVE-2019-16759 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 99.73% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2019-16759?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2019
- CVE-2019-16751An issue was discovered in Devise Token Auth through 1.1.2. …6.1
- CVE-2019-16752An issue was discovered in Decentralized Anonymous Payment S…4.3
- CVE-2019-16753An issue was discovered in Decentralized Anonymous Payment S…7.5
- CVE-2019-16754RIOT 2019.07 contains a NULL pointer dereference in the MQTT…7.5
- CVE-2019-16755BMC Remedy ITSM Suite is prone to unspecified vulnerabilitie…9.8
- CVE-2019-16758In Lexmark Services Monitor 2.27.4.0.39 (running on TCP port…7.5
- CVE-2019-1676A vulnerability in the Session Initiation Protocol (SIP) cal…6.8
- CVE-2019-16760Cargo prior to Rust 1.26.0 may download the wrong dependency…7.5
- CVE-2019-16761A specially crafted Bitcoin script can cause a discrepancy b…6.1
- CVE-2019-16762A specially crafted Bitcoin script can cause a discrepancy b…6.1
- CVE-2019-16763In Pannellum from 2.5.0 through 2.5.4 URLs were not sanitize…6.1
- CVE-2019-16764The use of `String.to_atom/1` in PowAssent is susceptible to…5.5
Are you affected by CVE-2019-16759?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST