CVE-2026-8172
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
The Simple Basic Contact Form WordPress plugin through version 20250114 does not escape user-supplied input before reflecting it into the contact form output on validation errors, leading to a Reflected Cross-Site Scripting vulnerability.
Risk Assessment
Unauthenticated attackers can exploit this vulnerability against site visitors via a crafted link or cross-site form submission.
Recommendation
It is recommended to update the plugin to the latest version that fixes this vulnerability and review the code to ensure proper input data sanitization.
Related vulnerabilities
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Sandbox escape vulnerability due to use-after-free in the Widget: Gtk component of Firefox. It may allow bypassing process isolation. The vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.
- CVE-2026-124903Critical
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- CVE-2026-124900Critical
A use-after-free in the DOM: Service Workers component of Firefox allows a sandbox escape. The vulnerability was fixed in Firefox 160.
- CVE-2026-124864Critical
Use-after-free vulnerability in the DOM: Service Workers component of Firefox enabling a sandbox escape. It may allow bypassing browser isolation mechanisms. Fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.
- CVE-2026-124861Critical
Use-after-free vulnerability in the Audio/Video: cubeb component of Firefox enabling a sandbox escape. It may allow bypassing browser isolation mechanisms. Fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.
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- CVE-2026-124853Critical
A sandbox escape vulnerability due to incorrect boundary conditions exists in the Graphics: Text component of Firefox. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.
- CVE-2026-119446Critical
A Session Fixation vulnerability in the CLI login flow in nerves_hub_web allows an unauthenticated attacker to obtain an API token for another user's account via a crafted login link. The confirmation code is only displayed and never compared, so it cannot prove that the confirming person is the one who started the login.
- CVE-2026-60043Critical
An unauthenticated remote attacker can perform an XSS attack on a logged-in backend user, allowing execution of multiple critical system actions such as shutting down the server or restoring an uploaded backup.
- CVE-2026-13312Critical
The described vulnerability could allow an attacker to compromise a system. Technical details are not provided in the description.
Original NVD description (English source)
The Simple Basic Contact Form WordPress plugin through 20250114 does not escape user-supplied input before reflecting it into the contact form output on validation errors, leading to a Reflected Cross-Site Scripting vulnerability that unauthenticated attackers can exploit against site visitors via a crafted link or cross-site form submission.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

