CVE-2021-22225

MediumCVSS 5.4/10Last modified Jun 17, 2026

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 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
GitLab	GitLab	>=13.11.3, <13.11.6; >=13.12, <13.12.6; >=14.0, <14.0.2

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22225.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/331051Broken Link
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22225.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/331051Broken Link

Timeline

Published: Jul 7, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-222266.5Under certain conditions, some users were able to push to protected branches that were restricted to deploy keys in GitLab CE/EE since versi CVE-2021-222276.1A reflected cross-site script vulnerability in GitLab before versions 13.11.6, 13.12.6 and 14.0.2 allowed an attacker to send a malicious li CVE-2021-222286.5An issue has been discovered in GitLab affecting all versions before 13.11.6, all versions starting from 13.12 before 13.12.6, and all versi CVE-2021-222297.5An issue has been discovered in GitLab CE/EE affecting all versions starting with 12.8. Under a special condition it was possible to access CVE-2021-22238.1Vulnerability in the Oracle Receivables product of Oracle E-Business Suite (component: Receipts). Supported versions that are affected are 1 CVE-2021-222307.2Improper code rendering while rendering merge requests could be exploited to submit malicious code. This vulnerability affects GitLab CE/EE CVE-2021-222314.3A denial of service in user's profile page is found starting with GitLab CE/EE 8.0 that allows attacker to reject access to their profile pa CVE-2021-222325.4HTML injection was possible via the full name field before versions 13.11.6, 13.12.6, and 14.0.2 in GitLab CE CVE-2021-222334.3An information disclosure vulnerability in GitLab EE versions 13.10 and later allowed a user to read project details CVE-2021-222346.4An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.11 before 13.11.7, all versions starting from 13.12 bef CVE-2021-222357.5Crash in DNP dissector in Wireshark 3.4.0 to 3.4.6 and 3.2.0 to 3.2.14 allows denial of service via packet injection or crafted capture file CVE-2021-222368.8Due to improper handling of OAuth client IDs, new subscriptions generated OAuth tokens on an incorrect OAuth client application. This vulner