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CVE-2026-86781— SSL Zen < 4.7.40 - Subscriber+ TLS Private Key Disclosure

Quick assessment

Affected
Unknown SSL Zen — SSL Certificate Installer & HTTPS Redirects
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SSL Zen — SSL 证书安装器与 HTTPS 重定向 WordPress 插件在 4.7.40 版本之前的版本中，未在证书文件下载例程中执行权限（capability）或 nonce 校验。该例程在 WordPress 后台请求生命周期的早期阶段执行，这使得任何已认证用户（包括订阅者）都能下载该站点的 TLS 私钥、证书以及诊断日志。

AI Predicted 6.1 Difficulty: Easy EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1578.002 · Create Cloud Instance

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown SSL Zen — SSL Certificate Installer & HTTPS Redirects < 4.7.40 affected
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I. Basic Information for CVE-2026-86781

Vulnerability Information
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Vulnerability Title
SSL Zen < 4.7.40 - Subscriber+ TLS Private Key Disclosure
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown SSL Zen — SSL Certificate Installer & HTTPS Redirects 0 ~ 4.7.40 -

II. Public POCs for CVE-2026-86781

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-86781

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Vendor Advisories for CVE-2026-86781 (1)

Same Patch Batch · Unknown · 2026-09-11 · 24 CVEs total

CVE-2026-85116 6.5 MEDIUM Simple CAPTCHA with Cloudflare Turnstile 1.2.2 - 1.42.1 - Unauthenticated Arbitrary Shortc
CVE-2026-82215 5.9 MEDIUM WC PayPay Gateway 0.5 - 0.9.3 - Unauthenticated Payment Bypass via Unverified Webhook
CVE-2026-86809 5.3 MEDIUM Persian Elementor < 2.8.2 - Unauthenticated ZarinPal Payment Callback Authority Bypass
CVE-2026-82213 5.3 MEDIUM Nexi XPay Build 7.6.1 - 7.6.2 - Unauthenticated Saved Payment Token Disclosure via IDOR
CVE-2026-86813 4.8 MEDIUM MetForm < 4.1.9 - Unauthenticated Email Header Injection via Notification Reply-To
CVE-2026-85678 AI Builder 2.4.1 - 2.7.7 - Contributor+ Stored XSS via Post JavaScript
CVE-2026-86812 WPCafe 3.0.10 - 3.0.17 - Unauthenticated Order Disclosure and Modification via food-orders
CVE-2026-86815 BackWPup 5.2.2 - 5.7.4 - BackWPup Jobs Checker+ Database Backup Exfiltration via Missing A
CVE-2026-86780 Featured Image with URL < 1.0.6 - Contributor+ Stored XSS via Image Alt Text
CVE-2026-86779 Visualizer < 4.0.6 - Contributor+ Arbitrary Chart Deletion via deleteChart
CVE-2026-86782 Visualizer < 4.0.6 - Contributor+ Arbitrary Post/Page Modification via IDOR
CVE-2026-85677 Gutenverse News < 3.3.3 - Unauthenticated Stored XSS via Comment Content
CVE-2026-83546 CoolClock < 4.3.8 - Contributor+ Stored XSS via Skin Class Attribute
CVE-2026-82305 YITH WooCommerce Wishlist < 4.18.1 - Unauthenticated Arbitrary Wishlist Rename via change_
CVE-2026-14566 Advanced Customized Prompts <= 1.0.1 - Subscriber+ WooCommerce Order Item Metadata Tamperi
CVE-2026-14560 Teddy Bear Customize Addon <= 1.0.5 - Unauthenticated Arbitrary File Upload
CVE-2026-14565 Advanced Customized Prompts <= 1.0.1 - Subscriber+ Stored XSS via Product Popup Configurat
CVE-2026-14563 Advanced Customized Prompts <= 1.0.1 - Unauthenticated Account Takeover
CVE-2026-14562 Teddy Bear Customize Addon <= 1.0.5 - Unauthenticated Order Data Disclosure
CVE-2026-74925 MultiVendorX 5.0.0 - 5.0.15 - Store Owner+ Privilege Escalation to Administrator

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: SSL Zen — SSL Certificate Installer & HTTPS Redirects
Same vendor: Unknown