CVE-2019-16759
vBulletin PHP Module Remote Code Execution Vulnerability - [Actively Exploited]
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.
INFO
Published Date :
Sept. 24, 2019, 10:15 p.m.
Last Modified :
Oct. 22, 2025, 12:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
The PHP module within vBulletin contains an unspecified vulnerability that allows for remote code execution via the widgetConfig[code] parameter in an ajax/render/widget_php routestring request.
Apply updates per vendor instructions.
https://nvd.nist.gov/vuln/detail/CVE-2019-16759
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade to vBulletin 5.5.4 P1 or later.
- If unable to upgrade, disable PHP widgets.
Public PoC/Exploit Available at Github
CVE-2019-16759 has a 58 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-16759.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-16759 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-16759
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
vBulletin replaceAdTemplate - Remote Code Execution By Chirag Artani
An open source CTF challenge for practicing insecure deserialization in PHP
PHP CSS
渗透测试有关的POC、EXP、脚本、提权、小工具等---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypass oa-getshell cve-cms
Assembly Python Shell PHP C++ C Go Ruby HTML Java
None
CSS HTML JavaScript
在公网收集的gobypoc+部分自己加的poc
None
None
Python Go
None
Assembly Python Shell PHP C++ C Go Ruby HTML Java
None
None
None
None
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
None
Assembly Python Shell PHP C++ C Go
安全类各家文库大乱斗
HTML CSS JavaScript Go Python Shell C
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-16759 vulnerability anywhere in the article.
-
Daily CyberSecurity
Morte Botnet Unveiled: A Rapidly Growing Loader-as-a-Service Campaign Exploiting Routers and Enterprise Apps
Researchers at CloudSEK Threat Intelligence (TRIAD) have exposed a sophisticated botnet operation that systematically compromises SOHO routers, IoT devices, and enterprise applications through web-bas ... Read more
-
CybersecurityNews
New Botnet Loader-as-a-Service Exploiting Routers and IoT Devices to Deploy Mirai Payloads
A sophisticated botnet operation has emerged, employing a Loader-as-a-Service model to systematically weaponize internet-connected devices across the globe. The campaign exploits SOHO routers, IoT dev ... Read more
-
BleepingComputer
Hackers are exploiting critical flaw in vBulletin forum software
Two critical vulnerabilities affecting the open-source forum software vBulletin have been discovered, with one confirmed to be actively exploited in the wild. The flaws, tracked under CVE-2025-48827 a ... Read more
The following table lists the changes that have been made to the
CVE-2019-16759 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 22, 2025
Action Type Old Value New Value Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16759 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 21, 2025
Action Type Old Value New Value Removed Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16759 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 21, 2025
Action Type Old Value New Value Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16759 -
Modified Analysis by [email protected]
Mar. 14, 2025
Action Type Old Value New Value -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 04, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-94 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html Added Reference http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html Added Reference http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.html Added Reference http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.html Added Reference http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.html Added Reference http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.html Added Reference http://seclists.org/fulldisclosure/2020/Aug/5 Added Reference https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/ Added Reference https://seclists.org/fulldisclosure/2019/Sep/31 Added Reference https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-20 CWE-94 -
Modified Analysis by [email protected]
Aug. 19, 2020
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html No Types Assigned http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.html No Types Assigned http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type http://seclists.org/fulldisclosure/2020/Aug/5 No Types Assigned http://seclists.org/fulldisclosure/2020/Aug/5 Exploit, Mailing List, Third Party Advisory Changed Reference Type https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/ No Types Assigned 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 -
CVE Modified by [email protected]
Aug. 13, 2020
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 11, 2020
Action Type Old Value New Value Added Reference http://seclists.org/fulldisclosure/2020/Aug/5 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 11, 2020
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.html [No Types Assigned] Added Reference http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.html [No Types Assigned] -
CVE Modified by [email protected]
Dec. 11, 2019
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 01, 2019
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html [No Types Assigned] -
CVE Modified by [email protected]
Sep. 26, 2019
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html [No Types Assigned] -
CVE Modified by [email protected]
Sep. 26, 2019
Action Type Old Value New Value Added Reference https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/ [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 25, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://seclists.org/fulldisclosure/2019/Sep/31 No Types Assigned https://seclists.org/fulldisclosure/2019/Sep/31 Exploit, Mailing List, Third Party Advisory Changed Reference Type https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/ No Types Assigned https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/ Press/Media Coverage, Third Party Advisory Added CWE CWE-20 Added CPE Configuration OR *cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (including) 5.5.4 -
CVE Modified by [email protected]
Sep. 25, 2019
Action Type Old Value New Value Added Reference https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/ [No Types Assigned]
Vulnerability Scoring Details
Base CVSS Score: 9.8
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
94.41 }} 0.06%
score
0.99973
percentile