CVE-2009-4804

Cross-site scripting (XSS) vulnerability in the Calendar Base (cal) extension before 1.1.1 for TYPO3, when Internet Explorer 6 is used, allows remote attackers to inject arbitrary web script or HTML via "search parameters."

Published: 2010-04-23 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4804 is rated Low Risk (35/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.31%). 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-2009-4804

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 2025-03-30 0.37% 0.31% -0.06%
2 2025-03-29 0.31% 0.37% +0.06%
3 2025-03-17 — 0.31% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4804

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/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:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2009-4804

NVD evaluator notes for CVE-2009-4804

Solution: Updated version available per: http://typo3.org/extensions/repository/view/cal/current/

Affected software / configurations for CVE-2009-4804

Vendor Product Version Raw CPE
mario_matzulla calendar_base <= 1.1.0 cpe:2.3:a:mario_matzulla:calendar_base:*:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.9.0 cpe:2.3:a:mario_matzulla:calendar_base:0.9.0:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.10.0 cpe:2.3:a:mario_matzulla:calendar_base:0.10.0:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.11.0 cpe:2.3:a:mario_matzulla:calendar_base:0.11.0:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.12.0 cpe:2.3:a:mario_matzulla:calendar_base:0.12.0:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.12.1 cpe:2.3:a:mario_matzulla:calendar_base:0.12.1:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.13.0 cpe:2.3:a:mario_matzulla:calendar_base:0.13.0:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.13.1 cpe:2.3:a:mario_matzulla:calendar_base:0.13.1:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.14.0 cpe:2.3:a:mario_matzulla:calendar_base:0.14.0:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.14.1 cpe:2.3:a:mario_matzulla:calendar_base:0.14.1:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.15.0 cpe:2.3:a:mario_matzulla:calendar_base:0.15.0:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.15.1 cpe:2.3:a:mario_matzulla:calendar_base:0.15.1:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.15.2 cpe:2.3:a:mario_matzulla:calendar_base:0.15.2:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.15.3 cpe:2.3:a:mario_matzulla:calendar_base:0.15.3:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.15.4 cpe:2.3:a:mario_matzulla:calendar_base:0.15.4:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.15.5 cpe:2.3:a:mario_matzulla:calendar_base:0.15.5:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.16.0 cpe:2.3:a:mario_matzulla:calendar_base:0.16.0:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.16.1 cpe:2.3:a:mario_matzulla:calendar_base:0.16.1:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.16.2 cpe:2.3:a:mario_matzulla:calendar_base:0.16.2:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.16.3 cpe:2.3:a:mario_matzulla:calendar_base:0.16.3:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.16.4 cpe:2.3:a:mario_matzulla:calendar_base:0.16.4:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.16.5 cpe:2.3:a:mario_matzulla:calendar_base:0.16.5:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.16.6 cpe:2.3:a:mario_matzulla:calendar_base:0.16.6:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.17.0 cpe:2.3:a:mario_matzulla:calendar_base:0.17.0:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.17.1 cpe:2.3:a:mario_matzulla:calendar_base:0.17.1:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.17.2 cpe:2.3:a:mario_matzulla:calendar_base:0.17.2:*:*:*:*:*:*:*
mario_matzulla calendar_base 0.17.3 cpe:2.3:a:mario_matzulla:calendar_base:0.17.3:*:*:*:*:*:*:*
mario_matzulla calendar_base 1.0.0 cpe:2.3:a:mario_matzulla:calendar_base:1.0.0:*:*:*:*:*:*:*

References for CVE-2009-4804

cvelogic Threat Intelligence