CVE-2006-6421
Cross-site scripting (XSS) vulnerability in the private message box implementation (privmsg.php)...
CVE-2006-6421 is a medium vulnerability (CVSS 6.0) in Phpbb Group Phpbb, published December 10, 2006. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 15.6%, the 96th percentile. No source names a fixed version.
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2006-6421- CVSS 2.0
- 6.0 Medium
AV:N/AC:M/Au:S/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2006-6421- Updated
- 2026-11-02
EUVDEUVD-2006-6404 No score
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.
- Record
EUVD-2006-6404- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-72m2-fw2r-7r4h No score
Cross-site scripting (XSS) vulnerability in the private message box implementation (privmsg.php)...
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.
- Record
GHSA-72m2-fw2r-7r4h- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | phpBB 2.0.21 - 'privmsg.php' HTML Injection | 2007-01-11 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, Exploit-DB, GitHub Advisories, NVD |