CVE-2020-17496

vBulletin PHP Module Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

*SSVC

Descriptions

vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafted subWidgets data in an ajax/render/widget_tabbedcontainer_tab_panel request. NOTE: this issue exists because of an incomplete fix for CVE-2019-16759.

vBulletin versiones 5.5.4 hasta 5.6.2, permite una ejecución de comandos remota por medio de datos de subWidgets diseñados en una petición de ajax /render/widget_tabbedcontainer_tab_panel. NOTA: este problema se presenta debido a una corrección incompleta para CVE-2019-16759

The PHP module within vBulletin contains an unspecified vulnerability that allows for remote code execution via crafted subWidgets data in an ajax/render/widget_tabbedcontainer_tab_panel request. This CVE ID resolves an incomplete patch for CVE-2019-16759.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-08-12 CVE Reserved
2020-08-12 CVE Published
2020-08-20 First Exploit
2021-11-03 Exploited in Wild
2022-05-03 KEV Due Date
2024-08-04 CVE Updated
2024-11-07 EPSS Updated

CWE

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CAPEC

References (5)

URL	Tag	Source
https://cwe.mitre.org/data/definitions/78.html	Technical Description

URL	Date	SRC
https://github.com/ctlyz123/CVE-2020-17496	2020-08-20
https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail	2024-08-04
https://seclists.org/fulldisclosure/2020/Aug/5	2024-08-04

URL	Date	SRC
https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patch	2022-10-26

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Vbulletin Search vendor "Vbulletin"		Vbulletin Search vendor "Vbulletin" for product "Vbulletin"				>= 5.5.4 <= 5.6.2 Search vendor "Vbulletin" for product "Vbulletin" and version " >= 5.5.4 <= 5.6.2"		-		Affected