CVE-2007-3963

Exp

Multiple cross-site scripting (XSS) vulnerabilities in UseBB 1.0.7, and possibly other 1.0.x versions, allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO (PHP_SELF) to (1) upgrade-0-2-3.php, (2) upgrade-0-3.php, or (3) upgrade-0-4.php in install/, a different vulnerability than CVE-2005-4193.

Published: 2007-07-25 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-3963 is rated High Exploit Risk (81.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.42%). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.01% over the last day, indicating growing attacker interest. 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-2007-3963

EDB-ID Source Kind Published Link
30324 exploit_db edb 2007-07-20 Exploit-DB ↗
30323 exploit_db edb 2007-07-20 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2007-3963

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 2026-06-15 1.41% 2.42% +1.01%
2 2026-05-05 1.63% 1.41% -0.23%
3 2026-03-13 — 1.63% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-3963

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2007-3963

Affected software / configurations for CVE-2007-3963

Vendor Product Version Raw CPE
usebb usebb 1.0 cpe:2.3:a:usebb:usebb:1.0:*:*:*:*:*:*:*
usebb usebb 1.0.1 cpe:2.3:a:usebb:usebb:1.0.1:*:*:*:*:*:*:*
usebb usebb 1.0.2 cpe:2.3:a:usebb:usebb:1.0.2:*:*:*:*:*:*:*
usebb usebb 1.0.3 cpe:2.3:a:usebb:usebb:1.0.3:*:*:*:*:*:*:*
usebb usebb 1.0.4 cpe:2.3:a:usebb:usebb:1.0.4:*:*:*:*:*:*:*
usebb usebb 1.0.5 cpe:2.3:a:usebb:usebb:1.0.5:*:*:*:*:*:*:*
usebb usebb 1.0.6 cpe:2.3:a:usebb:usebb:1.0.6:*:*:*:*:*:*:*
usebb usebb 1.0.7 cpe:2.3:a:usebb:usebb:1.0.7:*:*:*:*:*:*:*
usebb usebb 1.0_rc1 cpe:2.3:a:usebb:usebb:1.0_rc1:*:*:*:*:*:*:*
usebb usebb 1.0_rc2 cpe:2.3:a:usebb:usebb:1.0_rc2:*:*:*:*:*:*:*
usebb usebb 1.0_rc3 cpe:2.3:a:usebb:usebb:1.0_rc3:*:*:*:*:*:*:*

References for CVE-2007-3963

cvelogic Threat Intelligence