How severe is CVE-2012-4563?

CVE-2012-4563 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-4563 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4563?

CVE-2012-4563 affects Google Web Toolkit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-4563?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-4563 published?

CVE-2012-4563 was published on 2012-11-20 and last updated on 2026-06-16.

CVE-2012-4563

CVE-2012-4563 is a medium-severity vulnerability in Google Web Toolkit with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Google Web Toolkit
Published: 2012-11-20
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in Google Web Toolkit (GWT) 2.4 Beta and release candidates before 2.4.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2012-4563?: Cross-site scripting (XSS) vulnerability in Google Web Toolkit (GWT) 2.4 Beta and release candidates before 2.4.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2012-4563?: CVE-2012-4563 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-4563 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4563?: CVE-2012-4563 affects Google Web Toolkit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-4563?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4563 published?: CVE-2012-4563 was published on 2012-11-20 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:google:web_toolkit:2.4:beta:*:*:*:*:*:*

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