CVE-2021-27917

mediumpriority · track · 22EPSS 0.003 · 22 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.29% (22nd) EPSS

CVSS 5.4 · medium

Is it mine?

10 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Prior to this patch, a stored XSS vulnerability existed in the contact tracking and page hits report.

cvss

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

7.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.3

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

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · ENISA EU

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · security@mautic.orgexploitability 3.9 · impact 3.4

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · OSV

v3.15mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (10)

Products and version ranges known to be affected.

Mautic Mautic1.0.0-beta4 → < 4.4.13enisa_euvdEU
Mautic Mautic5.0.0 → < 5.1.1enisa_euvdEU
acquia mautic< 4.4.13nvdUScpe:2.3:a:acquia:mautic:*:*:*:*:*:*:*:*
acquia mautic= 1.0.0nvdUScpe:2.3:a:acquia:mautic:*:*:*:*:*:*:*:*
acquia mautic1.0.0 → 4.4.13nvdUScpe:2.3:a:acquia:mautic:*:*:*:*:*:*:*:*
acquia mautic5.0.0 → 5.1.1nvdUScpe:2.3:a:acquia:mautic:*:*:*:*:*:*:*:*
Packagist mautic/core1.0.0-beta4 → 4.4.13osvUSpkg:composer/mautic/core
Packagist mautic/core5.0.0-alpha → 5.1.1osvUSpkg:composer/mautic/core
Packagist mautic/core-lib1.0.0-beta4 → 4.4.13osvUSpkg:composer/mautic/core-lib
Packagist mautic/core-lib5.0.0-alpha → 5.1.1osvUSpkg:composer/mautic/core-lib

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-xpc5-rr39-v8v2Mautic has an XSS in contact tracking and page hits report2024-09-18ghsa · osvUS
### Summary Prior to this patch, a stored XSS vulnerability existed in the contact tracking and page hits report. ### Patches Please update to 4.4.13 or 5.1.1 or later. ### Workarounds None ### References https://owasp.org/www-project-top-ten/2017/A7_2017-Cross-Site_Scripting_(XSS) https://owasp.org/www-project-web-security-testing-guide/latest/4-Web_Application_Security_Testing/07-Input_Validation_Testing/02-Testing_for_Stored_Cross_Site_Scripting If you have any questions or comments about this advisory: Email us at [security@mautic.org](mailto:security@mautic.org)

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2024-09-18modified 2026-06-17

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+53007 more

references (4)

External citations — patches, advisories, analysis.

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