CVE-2009-4963

Cross-site scripting (XSS) vulnerability in the Commerce extension before 0.9.9 for TYPO3 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

Published: 2010-07-28 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2009-4963 is rated Low Risk (33.1/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.83%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2009-4963

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 0.21% 0.83% +0.62%
2 2025-03-17 0.08% 0.21% +0.12%
3 2023-03-07 0.08%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4963

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N 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:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
6.8 2.9 [email protected]

Weakness enumeration for CVE-2009-4963

GitHub Security Advisory for CVE-2009-4963

GHSA-rmc9-5546-5rrf · Severity: low · Ecosystem: composer — Commerce extension for TYPO3 vulnerable to Cross-site Scripting

Affected software / configurations for CVE-2009-4963

Vendor Product Version Raw CPE
typo3 commerce_extension <= 0.9.8 cpe:2.3:a:typo3:commerce_extension:*:*:*:*:*:*:*:*
typo3 commerce_extension 0.8.32 cpe:2.3:a:typo3:commerce_extension:0.8.32:*:*:*:*:*:*:*
typo3 commerce_extension 0.8.35 cpe:2.3:a:typo3:commerce_extension:0.8.35:*:*:*:*:*:*:*
typo3 commerce_extension 0.9.0 cpe:2.3:a:typo3:commerce_extension:0.9.0:*:*:*:*:*:*:*
typo3 commerce_extension 0.9.5 cpe:2.3:a:typo3:commerce_extension:0.9.5:*:*:*:*:*:*:*
typo3 commerce_extension 0.9.6 cpe:2.3:a:typo3:commerce_extension:0.9.6:*:*:*:*:*:*:*
typo3 commerce_extension 0.9.7 cpe:2.3:a:typo3:commerce_extension:0.9.7:*:*:*:*:*:*:*

References for CVE-2009-4963

cvelogic Threat Intelligence