XSS in GitLab

CVE-2020-13340

An issue has been discovered in GitLab affecting all versions prior to 13.2.10, 13.3.7 and 13.4.2: Stored XSS in CI Job Log

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.667 (99.3th percentile), scored .

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-13340: fell from 0.686 to 0.667.

EPSS over last 30 days · oldest: 0.686 · newest: 0.667 · change: -0.019

Affected products

  • GitLab — versions >=12.4, <13.2.10, >=13.3, <13.3.7, >=13.4, <13.4.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-13340?
CVE-2020-13340 is a high-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2020-10-08.
How severe is CVE-2020-13340?
High severity. CVSS v3 base score is 8.7 out of 10.