CVE-2010-4890

Cross-site scripting (XSS) vulnerability in the Yet Another Calendar (ke_yac) extension before 1.1.2 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Published: 2011-10-07 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2010-4890 is rated Low Risk (38.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.04%). 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-2010-4890

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 0.30% 1.04% +0.75%
2 2025-03-30 0.35% 0.30% -0.06%
3 2025-03-29 0.35%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-4890

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-2010-4890

Affected software / configurations for CVE-2010-4890

Vendor Product Version Raw CPE
andreas_kiefer ke_yac <= 1.1.1 cpe:2.3:a:andreas_kiefer:ke_yac:*:*:*:*:*:*:*:*
andreas_kiefer ke_yac 1.0.3 cpe:2.3:a:andreas_kiefer:ke_yac:1.0.3:*:*:*:*:*:*:*
andreas_kiefer ke_yac 1.0.4 cpe:2.3:a:andreas_kiefer:ke_yac:1.0.4:*:*:*:*:*:*:*
andreas_kiefer ke_yac 1.0.5 cpe:2.3:a:andreas_kiefer:ke_yac:1.0.5:*:*:*:*:*:*:*
andreas_kiefer ke_yac 1.1.0 cpe:2.3:a:andreas_kiefer:ke_yac:1.1.0:*:*:*:*:*:*:*

References for CVE-2010-4890

cvelogic Threat Intelligence