CVE-2021-27915: mautic XSS — Fix

Description

Prior to the patched version, there is an XSS vulnerability in the description fields within the Mautic application which could be exploited by a logged in user of Mautic with the appropriate permissions. This could lead to the user having elevated access to the system.

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CVSS v3.1 Score

7.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L

Weakness Type (CWE)

CWE-80 CWE-80

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
acquia	mautic	1.0.0 — 4.4.12
acquia	mautic	All
acquia	mautic	All
acquia	mautic	All
acquia	mautic	All
acquia	mautic	All
acquia	mautic	All
acquia	mautic	All
acquia	mautic	All

References

Advisories & Patches

https://github.com/mautic/mautic/security/advisories/GHSA-2rc5-2755-v422

Frequently Asked Questions

What is CVE-2021-27915? +

Prior to the patched version, there is an XSS vulnerability in the description fields within the Mautic application which could be exploited by a logged in user of Mautic with the appropriate permissions. This could lead to the user having elevated access to the system. It has a CVSS v3.1 base score of 7.6 (HIGH).

How severe is CVE-2021-27915? +

CVE-2021-27915 has a CVSS v3.1 score of 7.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2021-27915? +

CVE-2021-27915 affects products from acquia, specifically: mautic. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-27915? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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