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CVE-2004-0091

14
FAUCET Score

CVE-2004-0091 describes a disputed cross-site scripting (XSS) vulnerability in unknown versions of Jelsoft vBulletin, allegedly allowing remote attackers to inject arbitrary HTML or web script via the 'reg_site' parameter in register.php. The vendor denies the existence of this parameter in their official code, suggesting it may stem from modified installations. With a CVSS score of 4.3 (medium severity), it requires medium attack complexity and could lead to partial integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
3.0_beta_2CPE matchmatch criteria
cpe:2.3:a:jelsoft:vbulletin:3.0_beta_2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.21%
Probability of exploitation in next 30 days
EPSS Percentile
65.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0121 is in the 31st percentile among its peer group of 19,955 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
marc.info
marc.info
marc.info
securitytracker.com / id