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.
CVSS Details
- CVSS 3.1 Base Score: 7.1
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade zh-phpbb-twUpgrade phpbb | Dec 10, 2025 | Feb 16, 2006 |
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