CVE-2004-0091
CVE-2004-0091 is a medium-severity vulnerability in Jelsoft Vbulletin with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 2.0 base score 4.3)
- EPSS exploit prediction: 1% (65th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Jelsoft Vbulletin
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2004-0091?
- 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.
- How severe is CVE-2004-0091?
- CVE-2004-0091 has a CVSS 2.0 base score of 4.3, rated medium severity.
- Is CVE-2004-0091 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2004-0091?
- CVE-2004-0091 affects Jelsoft Vbulletin. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2004-0091?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2004-0091 published?
- CVE-2004-0091 was published on 2004-02-17 and last updated on 2026-06-16.
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
Affected products (1)
- cpe:2.3:a:jelsoft:vbulletin:3.0_beta_2:*:*:*:*:*:*:*
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