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TI-2021-06451 Aliases CVE-2021-24159GHSA-mw7f-7hv9-rrf6

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

Priority LOW 39CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-352.

Summary

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.

Why it matters now

EPSS 0.00593 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownContact Form 7 Style3.1.9 – 3.1.9—No fix listedCNA
  • Contact Form 7 Style VendorUnknown Affected 3.1.9 – 3.1.9 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:rocklobster:contact_form_7:*:*:*:*:*:wordpress:*:*up to 3.1.9Vulnerablerocklobsterinc
  • cpe:2.3:a:rocklobster:contact_form_7:*:*:*:*:*:wordpress:*:* Versions up to 3.1.9 Vulnerable ·rocklobsterinc

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-24159
  2. 2026-10-03 Alias added: GHSA-mw7f-7hv9-rrf6

References

  • TI-2020-18011 The contact-form-7 (aka Contact Form 7) plugin before 5.3.2 for WordPress allows… CVSS 3.1CRITICAL 10.0
  • TI-2024-04377 Contact Form 7 < 5.9.5 - Unauthenticated Open Redirect CVSS 3.1MEDIUM 6.1
  • TI-2018-14941 The contact-form-7 plugin before 5.0.4 for WordPress has privilege escalation because of… CVSS 3.0CRITICAL 9.8
  • TI-2023-05917 Contact Form 7 <= 5.8.3 - Authenticated (Editor+) Arbitrary File Upload CVSS 3.1HIGH 7.2
  • TI-2025-02844 Contact Form 7 <= 6.0.5 - Order Replay Vulnerability CVSS 3.1MEDIUM 5.3
  • TI-2024-02081 Contact Form 7 <= 5.9 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
See all 8 →

Sources