CVE-2021-22242

lowpriority · track · 44EPSS 0.636 · 99 %ileEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

63.6% (99th) EPSS

CVSS 3.5 · low

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.5–8.7

v2.03.5lowAV:N/AC:M/Au:S/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 6.8 · impact 2.9

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.3 · impact 2.7

v3.15.4mediumAV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.18.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nsecondary · ENISA EU

v3.18.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nsecondary · cve@gitlab.comexploitability 2.3 · impact 5.8

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (12)

Products and version ranges known to be affected.

GitLab GitLab11.4, → 13.12.9enisa_euvdEU
GitLab GitLab14.0, → 14.0.7enisa_euvdEU
GitLab GitLab14.1, → 14.1.2enisa_euvdEU
GitLab Inc. Gitlab11.4.0 → 13.12.9fstec_bduRU
GitLab Inc. Gitlab14.0.0 → 14.0.7fstec_bduRU
GitLab Inc. Gitlab14.1.0 → 14.1.2fstec_bduRU
gitlab gitlab11.4.0 → 13.12.9nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab14.0.0 → 14.0.7nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab14.1.0 → 14.1.2nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab11.4.0 → 13.12.9osvUSpkg:bitnami/gitlab
Bitnami gitlab14.0.0 → 14.0.7osvUSpkg:bitnami/gitlab
Bitnami gitlab14.1.0 → 14.1.2osvUSpkg:bitnami/gitlab

advisories (1)

Vendor and ecosystem advisories describing this.

BIT-gitlab-2021-222422024-03-06vendor · osvUS
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

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2021-08-25modified 2026-06-17

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+53003 more

references (9)

External citations — patches, advisories, analysis.

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