How severe is CVE-2021-3314?

CVE-2021-3314 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-3314 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3314?

CVE-2021-3314 affects Oracle Glassfish Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3314?

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

When was CVE-2021-3314 published?

CVE-2021-3314 was published on 2021-06-25 and last updated on 2026-06-17.

CVE-2021-3314

CVE-2021-3314 is a medium-severity vulnerability in Oracle Glassfish Server with a CVSS 3.x base score of 6.1. 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 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Oracle Glassfish Server
Published: 2021-06-25
Last modified: 2026-06-17

Description

Oracle GlassFish Server 3.1.2.18 and below allows /common/logViewer/logViewer.jsf XSS. A malicious user can cause an administrator user to supply dangerous content to the vulnerable page, which is then reflected back to the user and executed by the web browser. The most common mechanism for delivering malicious content is to include it as a parameter in a URL that is posted publicly or e-mailed directly to victims. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Frequently asked questions

What is CVE-2021-3314?: Oracle GlassFish Server 3.1.2.18 and below allows /common/logViewer/logViewer.jsf XSS. A malicious user can cause an administrator user to supply dangerous content to the vulnerable page, which is then reflected back to the user and executed by the web browser. The most common mechanism for delivering malicious content is to include it as a parameter in a URL that is posted publicly or e-mailed directly to victims. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
How severe is CVE-2021-3314?: CVE-2021-3314 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-3314 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3314?: CVE-2021-3314 affects Oracle Glassfish Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3314?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3314 published?: CVE-2021-3314 was published on 2021-06-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:oracle:glassfish_server:*:*:*:*:*:*:*:*

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