CVE-2025-48828: Critical severity vbulletin vulnerability
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 "vardump"("test") syntax, attackers can bypass security checks and execute arbitrary PHP code, as exploited in the wild in May 2025.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-48828?
CVE-2025-48828 is classified as a critical severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2025-48828?
To fix CVE-2025-48828, upgrade your vBulletin installation to the latest version provided by the vendor that addresses this vulnerability.
Which vBulletin versions are affected by CVE-2025-48828?
CVE-2025-48828 affects certain versions of vBulletin that utilize the vulnerable template engine.
What types of attacks are possible with CVE-2025-48828?
With CVE-2025-48828, attackers can execute arbitrary PHP code on the server by exploiting template conditionals.
How can I detect if my vBulletin installation is vulnerable to CVE-2025-48828?
You can detect CVE-2025-48828 by reviewing your template files for misuse of alternative PHP function invocation syntax and ensuring you are on a patched version.