CVE-2006-6168

tiki-register.php in TikiWiki before 1.9.7 allows remote attackers to trigger "notification-spam" via certain vectors such as a comma-separated list of addresses in the email field, related to lack of "a minimal check on email."

Published: 2006-11-29 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2006-6168 is rated Moderate Risk (56.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.83%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-6168

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-30 4.21% 1.83% -2.38%
2 2026-05-24 5.80% 4.21% -1.59%
3 2026-04-11 5.80%

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-6168

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2006-6168

OS Trackers for CVE-2006-6168

vendor priority summary link
alpine CVE-2006-6168: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-6168
ubuntu medium CVE-2006-6168 medium priority: Ubuntu including 1 source packages (tikiwiki), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): DNE 2, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2006-6168

Affected software / configurations for CVE-2006-6168

Vendor Product Version Raw CPE
tiki tikiwiki_cms\/groupware <= 1.9.6 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:*:*:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.6.1 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.6.1:*:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.9.0 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.0:*:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.9.0 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.0:rc1:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.9.0 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.0:rc2:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.9.0 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.0:rc3:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.9.1 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.1:*:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.9.2 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.2:*:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.9.3 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.3:*:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.9.4 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.4:*:*:*:*:*:*:*
tiki tikiwiki_cms\/groupware 1.9.5 cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.5:*:*:*:*:*:*:*

References for CVE-2006-6168

cvelogic Threat Intelligence