What’s Vulnerable › Vulnerabilities

CVE-2004-0091

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2004-02-17 · updated 2026-06-16

Description

NOTE: this issue has been disputed by the vendor. Cross-site scripting (XSS) vulnerability in register.php for unknown versions of vBulletin allows remote attackers to inject arbitrary HTML or web script via the reg_site (or possibly regsite) parameter. NOTE: the vendor has disputed this issue, saying "There is no hidden field called 'reg_site', nor any $reg_site variable anywhere in the vBulletin 2 or vBulletin 3 source code or templates, nor has it ever existed. We can only assume that this vulnerability was found in a site running code modified from that supplied by Jelsoft.

Affected products

• Jelsoft Vbulletin: 3.0_beta_2

References

• http://marc.info/?l=bugtraq&m=107462349324945&w=2
• http://marc.info/?l=vuln-dev&m=107462499927040&w=2
• http://marc.info/?l=vuln-dev&m=107478592401619&w=2
• http://marc.info/?l=vuln-dev&m=107488880317647&w=2
• http://securitytracker.com/id?1008780
• http://marc.info/?l=bugtraq&m=107462349324945&w=2
• http://marc.info/?l=vuln-dev&m=107462499927040&w=2
• http://marc.info/?l=vuln-dev&m=107478592401619&w=2
• http://marc.info/?l=vuln-dev&m=107488880317647&w=2
• http://securitytracker.com/id?1008780

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