NOTE: this issue has been disputed by the vendor
Published Jan 22, 2004
4.3
MEDIUMCVSS 2.0
EPSS 1.21%
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
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.21% (0.01208) | 67.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.21% (0.01208) | 64.29th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.43% (0.00427) | 60.27th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.69% (0.00692) | 80.83th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.81% (0.00815) | 81.92th | v3 (v2023.03.01) |
| Mar 6, 2024 | 0.91% (0.00914) | 82.41th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.91% (0.00914) | 80.40th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
No CWE recorded.
References (5)
- http://marc.info/?l=bugtraq&m=107462349324945&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=vuln-dev&m=107462499927040&w=2 mailing-listx_refsource_VULN-DEV
- http://marc.info/?l=vuln-dev&m=107478592401619&w=2 mailing-listx_refsource_VULN-DEV
- http://marc.info/?l=vuln-dev&m=107488880317647&w=2 mailing-listx_refsource_VULN-DEV
- http://securitytracker.com/id?1008780 vdb-entryx_refsource_SECTRACK
| Link | Providers | Tags |
|---|---|---|
| http://marc.info/?l=bugtraq&m=107462349324945&w=2 | mailing-listx_refsource_BUGTRAQ | |
| http://marc.info/?l=vuln-dev&m=107462499927040&w=2 | mailing-listx_refsource_VULN-DEV | |
| http://marc.info/?l=vuln-dev&m=107478592401619&w=2 | mailing-listx_refsource_VULN-DEV | |
| http://marc.info/?l=vuln-dev&m=107488880317647&w=2 | mailing-listx_refsource_VULN-DEV | |
| http://securitytracker.com/id?1008780 | vdb-entryx_refsource_SECTRACK |
Change history (0)
No recorded changes yet.