CVE-2021-22225

MEDIUMCVSS 5.4/10EPSS 0.56%

Last modified

CVE-2021-22225 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Insufficient input sanitization in markdown in GitLab version 13.11 and up allows an attacker to exploit a stored cross-site scripting vulnerability via a specially-crafted markdown. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

Insufficient input sanitization in markdown in GitLab version 13.11 and up allows an attacker to exploit a stored cross-site scripting vulnerability via a specially-crafted markdown

Metrics

CVSS 3.1
5.4/10

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

EPSS Probability
0.56%

42.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GitlabGitlab>= 13.11.3, < 13.11.6
GitlabGitlab>= 13.12.0, < 13.12.6
GitlabGitlab>= 14.0.0, < 14.0.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-22225?
Insufficient input sanitization in markdown in GitLab version 13.11 and up allows an attacker to exploit a stored cross-site scripting vulnerability via a specially-crafted markdown
How severe is CVE-2021-22225?
CVE-2021-22225 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22225?
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-2021-22225?

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

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Source: NVD / NIST