Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2019-16759

99
FAUCET Score

CVE-2019-16759 is a critical remote command execution (RCE) vulnerability affecting vBulletin versions 5.x through 5.5.4. This flaw allows an unauthenticated attacker to execute arbitrary commands by manipulating the widgetConfig[code] parameter in an ajax/render/widget_php routestring request. With a CVSS score of 9.8 and an EPSS score indicating high exploitability, this vulnerability poses a severe risk, enabling full compromise of affected systems. It is actively exploited in the wild, with public exploit code available, including Metasploit modules and Nuclei templates, and has garnered significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.0.0, <= 5.5.4CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.73%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Metasploit: vBulletin widgetConfig RCE · Sep 23, 2019
Nuclei: CVE-2019-16759 · Jul 4, 2020
ExploitDB: EDB-47437 · Sep 30, 2019
This CVE's current EPSS score of 0.9973 is in the 100th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/155633/vBulletin-5.5.4-Remote-Command-Execution.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/158829/vBulletin-5.x-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/158830/vBulletin-5.x-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/158866/vBulletin-5.x-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
arstechnica.com / information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug
ExploitPress/Media CoverageThird Party Advisory
seclists.org / fulldisclosure/2020/Aug/5
ExploitMailing ListThird Party Advisory
seclists.org / fulldisclosure/2019/Sep/31
ExploitMailing ListThird Party Advisory
theregister.co.uk / 2019/09/24/vbulletin_vbug_zeroday
Press/Media CoverageThird Party Advisory