CVE-2026-94235: CWE-862 Missing Authorization in MemberHero
Description
The MemberHero WordPress plugin through 6.9 does not perform any capability or nonce check on one of its AJAX actions, allowing any authenticated user, such as a subscriber, to make the site send arbitrary HTML emails to arbitrary recipients from its own mail system, which can be abused to relay phishing carrying the site's identity and domain reputation.
CVSS v3.1
Score 4.3medium
Affected software
MemberHero
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-94235 identifies a missing authorization (CWE-862) vulnerability in the MemberHero WordPress plugin versions up to and including 6.9. The plugin fails to perform capability or nonce checks on a specific AJAX action, enabling any authenticated user to abuse the site’s mail system to send arbitrary HTML emails to arbitrary recipients. This vulnerability can be leveraged to conduct phishing attacks that exploit the site's trusted identity and domain reputation.
Potential Impact
Any authenticated user on a vulnerable MemberHero installation can send arbitrary HTML emails from the site’s mail system to any recipient. This can facilitate phishing campaigns that appear to come from the legitimate site, potentially damaging the site's reputation and increasing the risk of successful phishing attacks against recipients.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict authenticated user roles to trusted users only and monitor for suspicious email activity originating from the site. Avoid granting unnecessary authentication privileges to untrusted users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-21T07:57:02.500Z
- State
- PUBLISHED
Threat ID: 6acb2de92cdf04f656b78e6b
Added to database: 10/11/2026, 06:34:17 UTC
Last enriched: 10/11/2026, 06:48:22 UTC
Last updated: 10/11/2026, 21:33:35 UTC
Views: 22
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