What is CVE-2021-27912?

CVE-2021-27912 is a high-severity vulnerability in Acquia Mautic, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2021-08-30.

How severe is CVE-2021-27912?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2021-27912 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Acquia Mautic

CVE-2021-27912

Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack when viewing Mautic assets by utilizing inline JS in the title and adding a broken image URL as a remote asset. This can only be leveraged by an authenticated use…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (45.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Acquia Mautic — versions 4.0.0
Mautic — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

n0-traces/cve_

References

security@mautic.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-27912?: CVE-2021-27912 is a high-severity vulnerability in Acquia Mautic, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2021-08-30.
How severe is CVE-2021-27912?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2021-27912 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.