Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2019-16759

CVE-2019-16759CRITICAL

n/a n/a — vBulletin vBulletin

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS    %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .9973   100.0   YES

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Sep 24  Reserved by mitre
  Sep 24  Published (CNA: mitre)
  Nov 3   Added to CISA KEV, remediation due 2022-05-03

CWE-94 · CNA: mitre · CVSS v3.1 · 11 references · KEV due May 3, 2022

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 24, 2019	Reserved	Reserved by mitre
September 24, 2019	Published	Published (CNA: mitre)
November 3, 2021	KEV ADDED	Added to CISA KEV, remediation due 2022-05-03

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-94

References (11)

http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html [x_refsource_MISC]
http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html [x_refsource_MISC]
http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.html [x_refsource_MISC]
http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.html [x_refsource_MISC]
http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.html [x_refsource_MISC]
http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.html [x_refsource_MISC]
http://seclists.org/fulldisclosure/2020/Aug/5 [mailing-list, x_refsource_FULLDISC]
https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/ [x_refsource_MISC]
https://seclists.org/fulldisclosure/2019/Sep/31 [x_refsource_MISC]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16759 [government-resource]
https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/ [x_refsource_MISC]

Authoritative record: CVE-2019-16759 at cve.org

Weaknesses: CWE-94

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2019-16759 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.