CVE-2026-73379 MEDIUM

CVE-2026-73379: WordPress Contact Form by Supsystic plugin < 1.10.0 - Bypass Vulnerability vulnerability

Vendor Supsystic

Product Contact Form by Supsystic

Weakness CWE-288

Published August 18, 2026

Last update August 18, 2026

View on NVD All CVEs

CVSS base score

6.5/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

What the vulnerability does

01Description

Unauthenticated Bypass Vulnerability in Contact Form by Supsystic < 1.10.0 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Contact Form by Supsystic versions before 1.10.0 contain an authentication bypass vulnerability. An attacker can access or modify form data and settings without logging in. The vulnerability exists in an alternate authentication path that does not properly validate user credentials. Update to version 1.10.0 or later to fix this issue.

What an attacker can do

03Attacker Capabilities

Access and modify contact form data and settings without authentication.

Potential impact on your site

04Site Impact

Attackers can read, modify, or delete form submissions and plugin settings without a password.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

August 18, 2026 CVE published

August 18, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-73379 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/288.html AskarLabs — CWE-288 write-up Authentication Bypass Using an Alternate Path or Channel

Related vulnerabilities

Identifiers

CVE CVE-2026-73379

CWE CWE-288

CVSS 6.5 / MEDIUM

Affected versions