CVE-2005-3420

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2005-11-01 · updated 2026-06-16

Description

usercp_register.php in phpBB 2.0.17 allows remote attackers to modify regular expressions and execute PHP code via the signature_bbcode_uid parameter, as demonstrated by injecting an "e" modifier into a preg_replace statement.

Affected products

Phpbb Group Phpbb: 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5 (+21)

References

http://marc.info/?l=bugtraq&m=113081113317600&w=2
http://secunia.com/advisories/17366
http://secunia.com/advisories/18098
http://securityreason.com/securityalert/130
http://securitytracker.com/id?1015121
http://www.debian.org/security/2005/dsa-925
http://www.hardened-php.net/advisory_172005.75.html
http://www.osvdb.org/20391
http://www.securityfocus.com/bid/15243
http://www.vupen.com/english/advisories/2005/2250
http://marc.info/?l=bugtraq&m=113081113317600&w=2
http://secunia.com/advisories/17366

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