CVE-2025-48828 — CRITICAL (9.0)

Vulnerability Description

Certain vBulletin versions might allow attackers to execute arbitrary PHP code by abusing Template Conditionals in the template engine. By crafting template code in an alternative PHP function invocation syntax, such as the "var_dump"("test") syntax, attackers can bypass security checks and execute arbitrary PHP code, as exploited in the wild in May 2025.

CVSS Score

9.0

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Vbulletin	Vbulletin	6.0.3

Related Weaknesses (CWE)

CWE-424

References

https://karmainsecurity.com/dont-call-that-protected-method-vbulletin-rceExploitThird Party Advisory
https://kevintel.com/CVE-2025-48828Third Party Advisory
https://blog.kevintel.com/vbulletin-replaceadtemplate-kev/Broken Link

FAQ

What is CVE-2025-48828?

CVE-2025-48828 is a vulnerability with a CVSS score of 9.0 (CRITICAL). Certain vBulletin versions might allow attackers to execute arbitrary PHP code by abusing Template Conditionals in the template engine. By crafting template code in an alternative PHP function invocat...

How severe is CVE-2025-48828?

CVE-2025-48828 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-48828?

Check the references section above for vendor advisories and patch information. Affected products include: Vbulletin Vbulletin.