What is CVE-2021-27910?

CVE-2021-27910 is a high-severity vulnerability in Acquia Mautic, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2021-08-30.

How severe is CVE-2021-27910?

High severity. CVSS v3 base score is 8.2 out of 10.

XSS in Acquia Mautic

CVE-2021-27910

Insufficient sanitization / filtering allows for arbitrary JavaScript Injection in Mautic using the bounce management callback function. The values submitted in the "error" and "error_related_to" parameters of the POST request of the bounc…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (49.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N.

Affected products

Acquia Mautic — versions 4.0.0
Mautic — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2021-27910?: CVE-2021-27910 is a high-severity vulnerability in Acquia Mautic, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2021-08-30.
How severe is CVE-2021-27910?: High severity. CVSS v3 base score is 8.2 out of 10.