CVE-2021-39878

5.8 MEDIUM

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 ...

Published: 2021-10-05 · Last updated: 2026-06-17

Severity and scoring

CVSS: 5.8 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
CWE: CWE-79

Affected products

Vendor	Product
gitlab	gitlab

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-39878
[Vendor advisory]https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39878.json
[Other]https://gitlab.com/gitlab-org/gitlab/-/issues/334043
[Other]https://hackerone.com/reports/1194254
[Vendor advisory]https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39878.json
[Other]https://gitlab.com/gitlab-org/gitlab/-/issues/334043
[Other]https://hackerone.com/reports/1194254

Related CVEs

Same vendor

CVE-2026-9694 — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.... (2.6 LOW)
CVE-2026-9204 — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19... (5.3 MEDIUM)
CVE-2026-8589 — GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0... (7.3 HIGH)
CVE-2026-7250 — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19... (7.5 HIGH)
CVE-2026-6976 — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.... (3.7 LOW)

Same CWE

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CVE-2026-54191 — Unauthenticated Cross Site Scripting (XSS) in Pods <= 3.3.8 versions (7.1 HIGH)
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