CVE-2025-48828

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 v3.1 Score

9.0

CRITICAL

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

Weakness Type (CWE)

CWE-424 CWE-424

Affected Products

Vendor	Product	Versions
vbulletin	vbulletin	All

References

Exploits

https://karmainsecurity.com/dont-call-that-protected-method-vbulletin-rce

Other References

https://kevintel.com/CVE-2025-48828 https://blog.kevintel.com/vbulletin-replaceadtemplate-kev/

Frequently Asked Questions

What is CVE-2025-48828? +

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. It has a CVSS v3.1 base score of 9.0 (CRITICAL).

How severe is CVE-2025-48828? +

CVE-2025-48828 has a CVSS v3.1 score of 9.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-48828? +

CVE-2025-48828 affects products from vbulletin, specifically: vbulletin. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-48828? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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