CVE-2021-24159

Contact Form 7 Style <= 3.1.9 - Cross-Site Request Forgery to Stored Cross-Site Scripting

HIGH
8.8
CVSS Score
Published: April 5, 2021 at 06:27 PM UTC
Updated: June 17, 2026 at 03:39 AM UTC
1 product affected across 1 vendorContact Form 7

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%

Description

Due to the lack of sanitization and lack of nonce protection on the custom CSS feature, an attacker could craft a request to inject malicious JavaScript on a site using the Contact Form 7 Style WordPress plugin through 3.1.9. If an attacker successfully tricked a site’s administrator into clicking a link or attachment, then the request could be sent and the CSS settings would be successfully updated to include malicious JavaScript.

Affected

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

95%
v ≤ 3.1.93.1.9

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-352

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