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CVE-2026-85677— Gutenverse News < 3.3.3 - Unauthenticated Stored XSS via Comment Content

Quick assessment

Affected
Unknown Gutenverse News
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.

Gutenverse News WordPress 插件在 3.3.3 版本之前，未能将其为 WordPress 允许的 HTML 元素所放宽的限制限定在预期的上下文中，而是将同一份宽松的元素列表应用于所有净化上下文（包括不可信的评论区）。这使得未认证用户能够存储 JavaScript 代码，这些代码会在任何查看评论队列的管理员，以及评论获批后访问该文章的访客的浏览器中执行。

AI Predicted 6.5 Difficulty: Easy

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2026-85677

Vulnerability Information
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Vulnerability Title
Gutenverse News < 3.3.3 - Unauthenticated Stored XSS via Comment Content
Source: CVE Program / CVE List V5
Vulnerability Description
The Gutenverse News WordPress plugin before 3.3.3 does not restrict the extra HTML it adds to WordPress's allowed elements to the context it is meant for, applying the same relaxed list to every sanitisation context including untrusted comments, allowing unauthenticated users to store JavaScript that will execute in the browser of any administrator who reviews the comment queue, and of any visitor to the post once the comment is approved.
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 Gutenverse News 0 ~ 3.3.3 -

II. Public POCs for CVE-2026-85677

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III. Intelligence Information for CVE-2026-85677

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News Coverage for CVE-2026-85677 (1)

Same Patch Batch · Unknown · 2026-09-11 · 19 CVEs total

CVE-2026-14562 Teddy Bear Customize Addon <= 1.0.5 - Unauthenticated Order Data Disclosure
CVE-2025-15695 GTranslate < 3.0.10 - Admin+ Stored XSS
CVE-2026-14559 Teddy Bear Customize Addon <= 1.0.5 - Unauthenticated Account Takeover
CVE-2026-83545 CoolClock < 4.3.8 - Contributor+ Stored XSS via Custom Skin JSON
CVE-2026-83546 CoolClock < 4.3.8 - Contributor+ Stored XSS via Skin Class Attribute
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-2026-86815 BackWPup 5.2.2 - 5.7.4 - BackWPup Jobs Checker+ Database Backup Exfiltration via Missing A
CVE-2026-74925 MultiVendorX 5.0.0 - 5.0.15 - Store Owner+ Privilege Escalation to Administrator
CVE-2026-85678 AI Builder 2.4.1 - 2.7.7 - Contributor+ Stored XSS via Post JavaScript
CVE-2026-82305 YITH WooCommerce Wishlist < 4.18.1 - Unauthenticated Arbitrary Wishlist Rename via change_
CVE-2026-86781 SSL Zen < 4.7.40 - Subscriber+ TLS Private Key Disclosure
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-2026-86812 WPCafe 3.0.10 - 3.0.17 - Unauthenticated Order Disclosure and Modification via food-orders

IV. Related Vulnerabilities

Same vendor: Unknown

V. Comments for CVE-2026-85677

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