CVE-2026-9357 PUBLISHED

vBulletin Login cross site scripting

Assigner: VulDB
Reserved: 23.05.2026 Published: 24.05.2026 Updated: 24.05.2026

A vulnerability was found in vBulletin 6.x. This impacts an unknown function of the component Login. Performing a manipulation results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used. VulDB is withholding an extended redistribution of exploit details to prevent simplified exploitation. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CVSS Score: 5.1

Product Status

Vendor n/a
Product vBulletin
Versions
  • Version 6.* is affected

Credits

  • chor4o (VulDB User) reporter
  • VulDB CNA Team coordinator

References

Problem Types

  • Cross Site Scripting CWE
  • Code Injection CWE