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CVE-2021-27912

XSS vulnerability on asset view

MEDIUM
5.4
CVSS Score
Published: August 30, 2021 at 03:55 PM UTC
Updated: June 17, 2026 at 03:45 AM UTC
1 product affected across 1 vendorMautic

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.6%

Description

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 user with permission to create or edit assets.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mautic· Acquiacomposer
95%
v < 3.3.4v < 4.0.04.0.0 alpha14.0.0 beta4.0.0 rc
Affected range stops below 3.3.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.0.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/mautic/mautic/security/advisories/GHSA-rh5w-82wh-jhr8

CVSS

5.4MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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