Vulnerability Report

CVE-2017-17672

RCE

Title: Vbulletin RCE

RCE

Proof Of Concept

PoC Available for CVE-2017-17672

CWE Category CWE-502

Published Date Dec 14, 2017

Modified Date Jun 17, 2026

Exploit Status Available

Score 9.8 CVSS v3.0

Exploit Probability (EPSS)

14.91%

Vulnerability Summary

CVE-2017-17672: In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file deletion and, under certain circumstances, code execution, because of unsafe usage of PHP's unserialize() in vB_Library_Template's cacheTemplates() function, which is a publicly exposed API. This is exploited with the templateidlist parameter to ajax/api/template/cacheTemplates.

Impacted Vendors

jelsoft 1

vbulletin 1

Reference Links

https://blogs.securiteam.com/index.php/archives/3573 https://www.exploit-db.com/exploits/43362/ https://blogs.securiteam.com/index.php/archives/3573 https://www.exploit-db.com/exploits/43362/

CVSS v3.0

Source Entity [email protected]

Severity CRITICAL

9.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.5

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns