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CVE-2021-22242

HIGH
Published 2021-08-25T18:38:24
Actions:

Expert Analysis

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CVSS Score

V3.1
8.7
/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.041
probability
of exploitation in the wild

There is a 4.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.881
Higher than 88.1% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Description

Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11.4 and up allows an attacker to exploit a stored cross-site scripting vulnerability via a specially-crafted markdown

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

GitLab

GitLab

Affected Versions:

>=11.4, <13.12.9 >=14.0, <14.0.7 >=14.1, <14.1.2

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-3r2f-rpgw-83gm

Advisory Details

Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11.4 and up allows an attacker to exploit a stored cross-site scripting vulnerability via a specially-crafted markdown

CVSS Scoring

CVSS Score

5.0

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-22242
WEB https://hackerone.com/reports/1212822
WEB https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22242.json
WEB https://gitlab.com/gitlab-org/gitlab/-/issues/332528

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://gitlab.com/gitlab-org/gitlab/-/issues/332528
https://hackerone.com/reports/1212822
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22242.json
Published: 2021-08-25T18:38:24
Last Modified: 2024-08-03T18:37:18.232Z
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