CVE-2007-3308

Simple Machines Forum (SMF) 1.1.2 uses a concatenation method with insufficient randomization when creating a WAV file CAPTCHA, which allows remote attackers to pass the CAPTCHA test via an automated brute-force attack.

Published: 2007-06-21 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-3308 is rated Moderate Risk (56.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.88%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2007-3308

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 2026-02-07 0.68% 0.88% +0.20%
2 2025-03-17 0.82% 0.68% -0.14%
3 2024-04-24 — 0.82% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-3308

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P 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:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2007-3308

Affected software / configurations for CVE-2007-3308

Vendor Product Version Raw CPE
simple_machines simple_machines_forum 1.1.2 cpe:2.3:a:simple_machines:simple_machines_forum:1.1.2:*:*:*:*:*:*:*

References for CVE-2007-3308

cvelogic Threat Intelligence