CVE-2025-48828 Code injection in vBulletin

Critical 9.0 Published Updated

Attackers can execute arbitrary PHP code by abusing template conditionals in vBulletin, leading to full system compromise.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-48828?

CVE-2025-48828 is a critical code injection vulnerability in Vbulletin Vbulletin, published on 27 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-424

Which versions are affected by CVE-2025-48828?

It affects 1 product.

Products include Vbulletin Vbulletin.

How do I fix CVE-2025-48828?

No fix has been published for CVE-2025-48828 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2025-48828 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-48828 exists.

Public exploit code: 1 Metasploit module, 1 Nuclei template and 1 proofs of concept on GitHub.

All Vbulletin Vbulletin vulnerabilities

Sources

Also known as GHSA-58pj-rcxg-3vhg.

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