CVE-2025-48828 - Certain vBulletin versions might allow attackers to execute arbitrary PHP code by abusing Template Conditionals in the template engine

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CRITICAL

Certain vBulletin versions might allow attackers to execute arbitrary PHP code by abusing Template Conditionals in the template engine

Published May 27, 2025

9.0

CRITICAL

CVSS 3.1

EPSS 57.64%

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.

Affected products

Vendor vBulletin Product vBulletin Default
n/a
- Version
  6.0.3
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

vBulletin

n/a

Version	Status	Constraints
6.0.3	affected	-

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-424

References (4)

https://blog.kevintel.com/vbulletin-replaceadtemplate-kev/
exploitBroken Link
https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-28268
Advisory
https://karmainsecurity.com/dont-call-that-protected-method-vbulletin-rce
ExploitThird Party Advisory
https://kevintel.com/CVE-2025-48828
Third Party Advisory

Link	Providers	Tags
https://blog.kevintel.com/vbulletin-replaceadtemplate-kev/		exploitBroken Link
https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-28268		Advisory
https://karmainsecurity.com/dont-call-that-protected-method-vbulletin-rce		ExploitThird Party Advisory
https://kevintel.com/CVE-2025-48828		Third Party Advisory