How severe is CVE-2023-3978?

CVE-2023-3978 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-2023-3978 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3978?

CVE-2023-3978 affects Golang Networking. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3978?

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

When was CVE-2023-3978 published?

CVE-2023-3978 was published on 2023-08-02 and last updated on 2026-06-17.

CVE-2023-3978

CVE-2023-3978 is a medium-severity vulnerability in Golang Networking 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)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Golang Networking
Published: 2023-08-02
Last modified: 2026-06-17

Description

Text nodes not in the HTML namespace are incorrectly literally rendered, causing text which should be escaped to not be. This could lead to an XSS attack.

Frequently asked questions

What is CVE-2023-3978?: Text nodes not in the HTML namespace are incorrectly literally rendered, causing text which should be escaped to not be. This could lead to an XSS attack.
How severe is CVE-2023-3978?: CVE-2023-3978 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-2023-3978 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3978?: CVE-2023-3978 affects Golang Networking. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3978?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3978 published?: CVE-2023-3978 was published on 2023-08-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:golang:networking:*:*:*:*:*:go:*:*

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