CVE-2026-86781: CWE-287 Improper Authentication in SSL Zen — SSL Certificate Installer & HTTPS Redirects
The SSL Zen — SSL Certificate Installer & HTTPS Redirects WordPress plugin before 4.7.40 does not perform capability or nonce checks on a certificate-file download routine that runs early in the WordPress admin request lifecycle, allowing any authenticated user, including Subscribers, to download the site's TLS private key, certificates, and diagnostic logs.
AI Analysis
Technical Summary
CVE-2026-86781 is an improper authentication vulnerability (CWE-287) in the SSL Zen — SSL Certificate Installer & HTTPS Redirects WordPress plugin versions prior to 4.7.40. The flaw arises from missing capability and nonce verification on a certificate-file download function triggered early during WordPress admin requests. This allows any authenticated user, regardless of privilege level, to access sensitive files including the TLS private key, certificates, and diagnostic logs, potentially compromising the confidentiality and integrity of the site's secure communications.
Potential Impact
An attacker with any authenticated WordPress user account, including low-privilege roles like Subscribers, can exploit this vulnerability to obtain the site's TLS private key and certificates. This exposure can lead to severe security consequences such as impersonation of the website, interception and decryption of encrypted traffic, and unauthorized access to sensitive diagnostic information.
Mitigation Recommendations
Users of the SSL Zen plugin should upgrade to version 4.7.40 or later where this vulnerability is fixed. Since the plugin version 4.7.40 addresses this issue, applying the official update is the recommended remediation. No alternative mitigations are indicated in the available data.
CVE-2026-86781: CWE-287 Improper Authentication in SSL Zen — SSL Certificate Installer & HTTPS Redirects
Description
The SSL Zen — SSL Certificate Installer & HTTPS Redirects WordPress plugin before 4.7.40 does not perform capability or nonce checks on a certificate-file download routine that runs early in the WordPress admin request lifecycle, allowing any authenticated user, including Subscribers, to download the site's TLS private key, certificates, and diagnostic logs.
CVSS v3.1
Score 5.3medium
Affected software
SSL Zen — SSL Certificate Installer & HTTPS Redirects
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86781 is an improper authentication vulnerability (CWE-287) in the SSL Zen — SSL Certificate Installer & HTTPS Redirects WordPress plugin versions prior to 4.7.40. The flaw arises from missing capability and nonce verification on a certificate-file download function triggered early during WordPress admin requests. This allows any authenticated user, regardless of privilege level, to access sensitive files including the TLS private key, certificates, and diagnostic logs, potentially compromising the confidentiality and integrity of the site's secure communications.
Potential Impact
An attacker with any authenticated WordPress user account, including low-privilege roles like Subscribers, can exploit this vulnerability to obtain the site's TLS private key and certificates. This exposure can lead to severe security consequences such as impersonation of the website, interception and decryption of encrypted traffic, and unauthorized access to sensitive diagnostic information.
Mitigation Recommendations
Users of the SSL Zen plugin should upgrade to version 4.7.40 or later where this vulnerability is fixed. Since the plugin version 4.7.40 addresses this issue, applying the official update is the recommended remediation. No alternative mitigations are indicated in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-08T11:44:29.809Z
- State
- PUBLISHED
Threat ID: 6aa3a07b91cc7f3848c78c50
Added to database: 09/11/2026, 06:32:27 UTC
Last enriched: 09/11/2026, 06:48:01 UTC
Last updated: 09/11/2026, 22:23:26 UTC
Views: 29
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.