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Message Filter for Contact Form 7

Message Filter for Contact Form 7 is a WordPress component with 5 published CVE records in this archive. The latest tracked vulnerability was published Jul 27, 2026; the highest CVE/CNA score is 7.1.

Plugin slug: cf7-message-filter

CVE-2026-65438: Message Filter for Contact Form 7 public input permits cross-site scripting

Message Filter for Contact Form 7 through 1.6.3.9 accepts attacker-controlled input through an unauthenticated request path and places it into a browser-executable output context without adequate neutralization. A victim who opens the crafted output can run script in the site's origin. The Patchstack CNA record does not disclose whether the payload is reflected or stored, or identify the endpoint, action, parameter or rendering function.

PublishedJul 27, 2026
Known safe version1.6.4.0
Safe version
Jul 27, 2026 CVE-2026-65438
Message Filter for Contact Form 7 public input permits cross-site scripting
Message Filter for Contact Form 7 through 1.6.3.9 accepts attacker-controlled input through an unauthenticated request path and places it into a browser-executable output context without adequate neutralization. A victim who opens the crafted output can run script in the site's origin. The Patchstack CNA record does not disclose whether the payload is reflected or stored, or identify the endpoint, action, parameter or rendering function.
1.6.4.0
CVE7.1
NVDPending
Jul 13, 2026 CVE-2026-57423
Message Filter for Contact Form 7: Cross-site scripting
Message Filter for Contact Form 7 is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 1.6.3.8.
1.6.3.9
CVE7.1
NVDPending
Dec 09, 2024 CVE-2024-54254
Message Filter for Contact Form 7: A security weakness
Message Filter for Contact Form 7 is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.
See mitigation notes
CVE6.3
NVDPending
Dec 07, 2024 CVE-2024-12026
Message Filter for Contact Form 7: A security weakness
Message Filter for Contact Form 7 is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
See mitigation notes
CVE4.3
NVDPending
Dec 06, 2024 CVE-2024-12027
Message Filter for Contact Form 7: A security weakness
Message Filter for Contact Form 7 is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
See mitigation notes
CVE4.3
NVDPending