What is CVE-2020-26407?

CVE-2020-26407 is a medium-severity vulnerability in Gitlab, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2020-12-10.

How severe is CVE-2020-26407?

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

XSS in Gitlab

CVE-2020-26407

A XSS vulnerability exists in Gitlab CE/EE from 12.4 before 13.4.7, 13.5 before 13.5.5, and 13.6 before 13.6.2 that allows an attacker to perform cross-site scripting to other users via importing a malicious project

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (50.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Gitlab
Gitlab Ce/ee — versions >=12.4, <13.4.7, >=13.5

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@gitlab.com (x_refsource_MISC, Broken Link)
cve@gitlab.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
cve@gitlab.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2020-26407?: CVE-2020-26407 is a medium-severity vulnerability in Gitlab, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2020-12-10.
How severe is CVE-2020-26407?: Medium severity. CVSS v3 base score is 5.5 out of 10.