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CVE-2006-0805
The CAPTCHA functionality in php-Nuke 6.0 through 7.9 uses fixed challenge/response pairs that only vary once per day based on the User…
High7.5EPSS 3.0%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The CAPTCHA functionality in php-Nuke 6.0 through 7.9 uses fixed challenge/response pairs that only vary once per day based on the User Agent (HTTP_USER_AGENT), which allows remote attackers to bypass CAPTCHA controls by fixing the User Agent, performing a valid challenge/response, then replaying that pair in the random_num and gfx_check parameters.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 3.0% · top 13% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (5)
- 16722 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 455 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- 20060218 [waraxe-2006-SA#045] - Bypassing CAPTCHA in phpNuke 6.x-7.9 (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 18936 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.waraxe.us/advisory-45.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2006-0805)Record last updated .