CVE-2021-22225
Insufficient input sanitization in markdown in GitLab version 13.11 and up allows an attacker to...
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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
- Record
CVE-2021-22225- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
EUVDEUVD-2021-9371
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
- Record
EUVD-2021-9371- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-27v4-8jv4-3cp6 No score
Insufficient input sanitization in markdown in GitLab version 13.11 and up allows an attacker to...
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
- Record
GHSA-27v4-8jv4-3cp6- Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
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
- Record
CVE-2021-22225- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
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
- Record
CVE-2021-22225- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-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
- Record
UBUNTU-CVE-2021-22225- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVBIT-gitlab-2021-22225 No score
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
- Record
BIT-gitlab-2021-22225- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-22225 is a medium vulnerability (CVSS 4.7) in Gitlab, published July 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 46th percentile. Fixed in gitlab 13.11.6.