How severe is CVE-2023-6033?

CVE-2023-6033 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-6033 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6033?

CVE-2023-6033 primarily affects Gitlab. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-6033?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-6033 published?

CVE-2023-6033 was published on 2023-12-01 and last updated on 2026-06-17.

CVE-2023-6033

CVE-2023-6033 is a high-severity vulnerability in Gitlab with a CVSS 3.x base score of 8.7. 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: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Gitlab
Published: 2023-12-01
Last modified: 2026-06-17

Description

Improper neutralization of input in Jira integration configuration in GitLab CE/EE, affecting all versions from 15.10 prior to 16.6.1, 16.5 prior to 16.5.3, and 16.4 prior to 16.4.3 allows attacker to execute javascript in victim's browser.

Frequently asked questions

What is CVE-2023-6033?: Improper neutralization of input in Jira integration configuration in GitLab CE/EE, affecting all versions from 15.10 prior to 16.6.1, 16.5 prior to 16.5.3, and 16.4 prior to 16.4.3 allows attacker to execute javascript in victim's browser.
How severe is CVE-2023-6033?: CVE-2023-6033 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-6033 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6033?: CVE-2023-6033 primarily affects Gitlab. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-6033?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-6033 published?: CVE-2023-6033 was published on 2023-12-01 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*

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