XSS in Acquia Mautic
CVE-2021-27911
Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack through the contact's first or last name and triggered when viewing a contact's details page then clicking on the action drop down and hovering over the Campaigns button. Contact first and last name can be populated from different sources such as UI, API, 3rd party syncing, forms, etc.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Acquia Mautic — versions 4.0.0
- Mautic — versions unspecified
Weakness classification (CWE)
References
- github.com/mautic/mautic/security/advisories/GHSA-72hm-fx78-xwhc (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27911?
- CVE-2021-27911 is a high-severity vulnerability in Acquia Mautic, classified under Cross-site Scripting. CVSS score: 8.3/10. Published 2021-08-30.
- How severe is CVE-2021-27911?
- High severity. CVSS v3 base score is 8.3 out of 10.