CVE-2006-3204

Exp

Ultimate PHP Board (UPB) 1.9.6 and earlier uses a cryptographically weak block cipher with a large key collision space, which allows remote attackers to determine a suitable decryption key given the plaintext and ciphertext by obtaining the plaintext password, which is sent when logging in, and the ciphertext, which is set in the pass_env cookie.

Published: 2006-06-24 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-3204 is rated Exploit Available (59.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.64%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2006-3204

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2006-3204

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-12 0.46% 0.64% +0.18%
2 2025-07-18 0.38% 0.46% +0.09%
3 2025-03-17 — 0.38% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-3204

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2006-3204

OS Trackers for CVE-2006-3204

vendor priority summary link
alpine — CVE-2006-3204: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-3204

Affected software / configurations for CVE-2006-3204

Vendor Product Version Raw CPE
ultimate_php_board ultimate_php_board 1.8 cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.8:*:*:*:*:*:*:*
ultimate_php_board ultimate_php_board 1.8.2 cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.8.2:*:*:*:*:*:*:*
ultimate_php_board ultimate_php_board 1.9 cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.9:*:*:*:*:*:*:*
ultimate_php_board ultimate_php_board 1.9.6 cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.9.6:*:*:*:*:*:*:*

References for CVE-2006-3204

cvelogic Threat Intelligence