8.3

CVE-2021-27911: acquia mautic Cross-site Scripting

CVSS: 8.3v3.1HighModified
Published 30-08-2021Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-27911 is a high (CVSS 8.3) Cross-site Scripting vulnerability in acquia mautic. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 49.8% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.64%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-08-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.64%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

0.00 pp

From 0.64% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.64%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Acquia1 product
  • mauticEOL< 3.3.4 | 4.0.0:alpha1 | 4.0.0:beta | 4.0.0:rc
Mautic1 product
  • mautic≥ unspecified, < 3.3.4 | ≥ unspecified, < 4.0.0

2 vendors · 2 products

References

1 links