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CVE-2006-6421

Published: Dec 10, 2006Updated: Apr 23, 2026 Sources: CVE List NVDNVD-CWE-Other

No Known Exploits

No Fix Available

Description

Cross-site scripting (XSS) vulnerability in the private message box implementation (privmsg.php) in phpBB 2.0.x allows remote authenticated users to inject arbitrary web script or HTML via the "Message body" field in a message to a non-existent user.

CVSS Vector Breakdown

Exploitability

AV:NAccess Vector

Network

AC:MAccess Complexity

Medium

Au:SAuthentication

Single

Impact

C:PConfidentiality

Partial

I:PIntegrity

Partial

A:PAvailability

Partial

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Weaknesses

Affected Products

phpbb phpbb group

On-premWeb App

Web & CMS Plugins / forum-wiki

phpbb grouposs-projectGBWeb & CMS Pluginsaka phpbb, phpbb-auction, phpbb advanced guestbook

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

http://secunia.com/advisories/23283

http://securityreason.com/securityalert/2005

securityreason.com

http://www.phpbb.com/phpBB/viewtopic.php?f=14&t=489624

and 7 more references View all →

Timeline

Published

Dec 10, 2006

Last Updated

Apr 23, 2026

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