What is CVE-2020-13288?

CVE-2020-13288 is a medium-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2020-08-12.

How severe is CVE-2020-13288?

Medium severity. CVSS v3 base score is 5.5 out of 10.

XSS in GitLab

CVE-2020-13288

In GitLab before 13.0.12, 13.1.6, and 13.2.3, a stored XSS vulnerability exists in the CI/CD Jobs page

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-08-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.040 (90.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000

Affected products

GitLab — versions >=13.0, <13.0.12, >=13.1, <13.1.6, >=13.2, <13.2.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

gitlab.com/gitlab-org/gitlab/-/issues/215538 (Broken Link)
hackerone.com/reports/856554 (Permissions Required, Third Party Advisory)
gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13288.json (Vendor Advisory)

Frequently asked questions

What is CVE-2020-13288?: CVE-2020-13288 is a medium-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2020-08-12.
How severe is CVE-2020-13288?: Medium severity. CVSS v3 base score is 5.5 out of 10.