CVE-2009-3021

Cross-site scripting (XSS) vulnerability in Site Calendar 'mycaljp' plugin 2.0.0 through 2.0.6, as used in the Japanese extended package of Geeklog 1.5.0 through 1.5.2 and when distributed 20090629 or earlier, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Published: 2009-08-31 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-3021 is rated Low Risk (36.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.36%). 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-2009-3021

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 2025-03-17 0.25% 0.36% +0.10%
2 2024-09-17 0.17% 0.25% +0.09%
3 2024-03-15 — 0.17% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-3021

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-2009-3021

Affected software / configurations for CVE-2009-3021

Vendor Product Version Raw CPE
yoshinori_tahara mycaljp 2.0.0 cpe:2.3:a:yoshinori_tahara:mycaljp:2.0.0:*:*:*:*:*:*:*
yoshinori_tahara mycaljp 2.0.1 cpe:2.3:a:yoshinori_tahara:mycaljp:2.0.1:*:*:*:*:*:*:*
yoshinori_tahara mycaljp 2.0.2 cpe:2.3:a:yoshinori_tahara:mycaljp:2.0.2:*:*:*:*:*:*:*
yoshinori_tahara mycaljp 2.0.3 cpe:2.3:a:yoshinori_tahara:mycaljp:2.0.3:*:*:*:*:*:*:*
yoshinori_tahara mycaljp 2.0.4 cpe:2.3:a:yoshinori_tahara:mycaljp:2.0.4:*:*:*:*:*:*:*
yoshinori_tahara mycaljp 2.0.5 cpe:2.3:a:yoshinori_tahara:mycaljp:2.0.5:*:*:*:*:*:*:*
yoshinori_tahara mycaljp 2.0.6 cpe:2.3:a:yoshinori_tahara:mycaljp:2.0.6:*:*:*:*:*:*:*
geeklog geeklog 1.5.0 cpe:2.3:a:geeklog:geeklog:1.5.0:*:ja:*:*:*:*:*
geeklog geeklog 1.5.1 cpe:2.3:a:geeklog:geeklog:1.5.1:*:ja:*:*:*:*:*
geeklog geeklog 1.5.2 cpe:2.3:a:geeklog:geeklog:1.5.2:*:ja:*:*:*:*:*

References for CVE-2009-3021

cvelogic Threat Intelligence