Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-88793— YouTube Embed 10.0 - 10.3 - Unauthenticated Stored XSS via youram_server

Quick assessment

Affected
Unknown YouTube Embed
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.

YouTube Embed WordPress 插件的版本 10.0 到 10.3 中，其某个 AJAX 动作未进行身份验证（authorization）检查，仅依赖在每个前端页面上输出的 nonce（一次性令牌），并且在渲染前未对存储的数据进行转义。这使得未经身份验证的攻击者能够存储任意的 Web 脚本，这些脚本将在任何查看受影响内容的用户（包括管理员）的会话中执行，从而可能导致跨站脚本（XSS）漏洞。

CVSS 8.8 · High
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-88793

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
YouTube Embed 10.0 - 10.3 - Unauthenticated Stored XSS via youram_server
Source: CVE Program / CVE List V5
Vulnerability Description
The YouTube Embed WordPress plugin from 10.0 to 10.3 does not perform any authorisation check on one of its AJAX actions, relying only on a nonce it prints on every front-end page, and does not escape the stored data before rendering it, allowing unauthenticated attackers to store arbitrary web scripts which will execute in the session of any user viewing the affected content, including an administrator.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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 YouTube Embed 10.0 ~ 10.3 -

II. Public POCs for CVE-2026-88793

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-88793

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-88793 (1)

Same Patch Batch · Unknown · 2026-09-13 · 15 CVEs total

CVE-2026-81648 10.0 CRITICAL CryptoPayment Gateway 1.2.1 - 1.2.2 - Unauthenticated Arbitrary File Deletion and Settings
CVE-2026-74933 8.8 HIGH GenieWords 1.5.27 - 1.5.34 - Unauthenticated Stored XSS and Configuration Overwrite
CVE-2026-85129 8.8 HIGH Hoo Companion 1.0.2 - Unauthenticated Stored XSS via Theme Settings Import
CVE-2026-88802 7.5 HIGH MDJM Event Management and Mobile Events Manager - Unauthenticated Arbitrary Post Deletion
CVE-2026-89050 4.3 MEDIUM Quads Ads Manager for Google AdSense < 3.0.5 - Subscriber+ Ad-Selling Payment Bypass via U
CVE-2026-77773 Social Contact Form (FormyChat) < 2.15.8 - Unauthenticated Gravity Forms Entry Disclosure
CVE-2026-86406 User Registration & Membership < 5.2.8 - Subscriber+ Privilege Escalation via Membership P
CVE-2026-80071 User Registration & Membership < 5.2.8 - Author+ Privilege Escalation to Administrator
CVE-2026-80072 User Registration & Membership < 5.2.8 - Unauthenticated Open Redirect via Login Redirect
CVE-2026-86407 User Registration & Membership < 5.2.8 - Unauthenticated User Data Disclosure via Membersh
CVE-2026-88764 Simple Membership < 4.7.8 - Subscriber+ Membership Level Escalation via PayPal Standard su
CVE-2026-88912 rtMedia for WordPress, BuddyPress and bbPress < 4.7.12 - Subscriber+ Arbitrary Activity Pr
CVE-2026-88995 Bookit < 2.6.0.1 - Unauthenticated Appointment PII Disclosure via Availability Check
CVE-2026-89080 Really Simple Security < 9.8.1 - Unauthenticated 2FA Bypass via Email Provider State Demot

IV. Related Vulnerabilities

Same product: YouTube Embed
Same vendor: Unknown

V. Comments for CVE-2026-88793

No comments yet

Leave a comment