CVE-2006-0805

PHP-Nuke 7.x - CAPTCHA Bypass

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2006-02-18 First Exploit
2006-02-21 CVE Reserved
2006-02-21 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (6)

URL	Tag	Source
http://secunia.com/advisories/18936	Third Party Advisory
http://securityreason.com/securityalert/455	Third Party Advisory
http://www.securityfocus.com/archive/1/425394/100/0/threaded	Mailing List

URL	Date	SRC
https://www.exploit-db.com/exploits/27249	2006-02-18
http://www.securityfocus.com/bid/16722	2024-08-07
http://www.waraxe.us/advisory-45.html	2024-08-07

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.0 Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.0"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.5 Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.5"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.5_beta1 Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.5_beta1"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.5_final Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.5_final"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.5_rc1 Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.5_rc1"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.5_rc2 Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.5_rc2"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.5_rc3 Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.5_rc3"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.6 Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.6"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.7 Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.7"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				6.9 Search vendor "Francisco Burzi" for product "Php-nuke" and version "6.9"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.0 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.0"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.0_final Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.0_final"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.1 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.1"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.2 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.2"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.3 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.3"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.4 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.4"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.5 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.5"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.6 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.6"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.7 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.7"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.8 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.8"		-		Affected
Francisco Burzi Search vendor "Francisco Burzi"		Php-nuke Search vendor "Francisco Burzi" for product "Php-nuke"				7.9 Search vendor "Francisco Burzi" for product "Php-nuke" and version "7.9"		-		Affected