CVE-2020-12276

Name: CVE-2020-12276
Creator: NVD / NIST
Published: 2020-04-29T17:15:11.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2020-12276 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. GitLab 9.5.9 through 12.9 is vulnerable to stored XSS in an admin notification feature.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

Description

GitLab 9.5.9 through 12.9 is vulnerable to stored XSS in an admin notification feature.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.55%

41.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 9.5.9, < 12.7.8
Gitlab	Gitlab	>= 12.8.0, < 12.8.8
Gitlab	Gitlab	>= 12.9.0, < 12.9.1

References

https://about.gitlab.com/releases/2020/03/26/security-release-12-dot-9-dot-1-released/Vendor Advisory
https://about.gitlab.com/releases/2020/03/26/security-release-12-dot-9-dot-1-released/Vendor Advisory

Timeline

Published: Apr 29, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12276?

GitLab 9.5.9 through 12.9 is vulnerable to stored XSS in an admin notification feature.

How severe is CVE-2020-12276?

CVE-2020-12276 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12276?

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-2020-12276?

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

Scan your code now

Source: NVD / NIST