CVE-2005-3420
usercp_register.php in phpBB 2.0.17 allows remote attackers to modify regular expressions and...
CVE-2005-3420 is a high vulnerability (CVSS 7.5) in Phpbb Group Phpbb, published November 1, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.37%, the 84th percentile. No source names a fixed version.
- Severity
- 7.5 HighCVSS 2.0, NVD
- Exploit chance
- 2.37%EPSS, 84th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
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.
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
phpbb2Debian:3.1 From an advisory covering 9 CVEs | before 2.0.13+1-6sarge2, plus listed versions 2.0.13+1-62.0.13+1-6sarge1 | 2.0.13+1-6sarge2 |
What each source reports
NVD Score used
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.
- Record
CVE-2005-3420- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2005-3420- Updated
- 2026-11-02
EUVDEUVD-2005-3419No score
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.
- Record
EUVD-2005-3419- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2g77-3x3p-6v8wNo score
usercp_register.php in phpBB 2.0.17 allows remote attackers to modify regular expressions and...
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.
- Record
GHSA-2g77-3x3p-6v8w- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.