CVE-2021-39878

MEDIUMCVSS 5.4/10EPSS 0.78%

Last modified

CVE-2021-39878 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A stored Reflected Cross-Site Scripting vulnerability in the Jira integration in GitLab version 13.0 up to 14.3.1 allowed an attacker to execute arbitrary javascript code.. EPSS estimates a 0.78% chance of exploitation in the next 30 days.

Description

A stored Reflected Cross-Site Scripting vulnerability in the Jira integration in GitLab version 13.0 up to 14.3.1 allowed an attacker to execute arbitrary javascript code.

Metrics

CVSS 3.1
5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability
0.78%

51.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GitlabGitlab>= 13.0.0, < 14.1.7
GitlabGitlab>= 14.2.0, < 14.2.5
GitlabGitlab>= 14.3.0, < 14.3.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-39878?
A stored Reflected Cross-Site Scripting vulnerability in the Jira integration in GitLab version 13.0 up to 14.3.1 allowed an attacker to execute arbitrary javascript code.
How severe is CVE-2021-39878?
CVE-2021-39878 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.
How do I fix CVE-2021-39878?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39878?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST