CVE-2006-6421 describes a Cross-Site Scripting (XSS) vulnerability in phpBB 2.0.x, specifically within the private message box (privmsg.php). Authenticated users can inject arbitrary web script or HTML into the "Message body" field when sending a message to a non-existent user. This vulnerability has a CVSS score of 6.0, indicating a medium severity, and allows for partial confidentiality, integrity, and availability impact through a network-based attack with medium complexity, requiring authentication. While not listed on the KEV catalog and showing no active exploitation or community discussion, an exploit proof-of-concept (EDB-29442) is available on ExploitDB.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.0CPE matchmatch criteria | cpe:2.3:a:phpbb_group:phpbb:2.0:*:*:*:*:*:*:* | ||
2.0.0CPE matchmatch criteria | cpe:2.3:a:phpbb_group:phpbb:2.0.0:*:*:*:*:*:*:* | ||
2.0.1CPE matchmatch criteria | cpe:2.3:a:phpbb_group:phpbb:2.0.1:*:*:*:*:*:*:* | ||
2.0.2CPE matchmatch criteria | cpe:2.3:a:phpbb_group:phpbb:2.0.2:*:*:*:*:*:*:* | ||
2.0.3CPE matchmatch criteria | cpe:2.3:a:phpbb_group:phpbb:2.0.3:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:S/C:P/I:P/A:P
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.