CVE-2026-82884— All in One SEO < 5.0.0.1 - Contributor+ Stored XSS via ai-assistant Block
Quick assessment
Affected
Unknown All in One SEO
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.
5.0.0.1 之前的 All in One SEO WordPress 插件在将帖子中存储的部分内容渲染回帖子编辑器时，未对其进行净化和转义。这可能使得拥有 contributor（贡献者）角色及更高权限的用户能够实施存储型跨站脚本（Stored XSS）攻击，该攻击会在拥有更高权限的用户编辑该帖子时触发。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-82884
Vulnerability Information
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Vulnerability Title
All in One SEO < 5.0.0.1 - Contributor+ Stored XSS via ai-assistant Block
Source: CVE Program / CVE List V5
Vulnerability Description
The All in One SEO WordPress plugin before 5.0.0.1 does not sanitise and escape some content stored in posts before rendering it back in the post editor, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks that trigger when a higher privileged user edits the post.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/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 | All in One SEO | 0 ~ 5.0.0.1 | - |
|
II. Public POCs for CVE-2026-82884
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Other References for CVE-2026-82884 (1)
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🔗 All in One SEO < 5.0.0.1 – Contributor+ Stored XSS via ai-assistant Block | CVE 2026-82884 | Plugin Vulnerabilities Read full article exploit vdb-entry technical-description
Same Patch Batch · Unknown · 2026-09-02 · 66 CVEs total
| CVE-2026-4357 | 10.0 CRITICAL | Embed HTML5 Game <= 1.3 - Unauthenticated Arbitrary File Upload |
| CVE-2026-77009 | 9.9 CRITICAL | WatchMan-Site7 3.1.1 - 4.2.0 - Subscriber+ RCE via Debug Console |
| CVE-2025-9314 | 9.8 CRITICAL | Developer Tools <= 1.1.3 – Unauthenticated Arbitrary File Upload |
| CVE-2025-15485 | 8.2 HIGH | Auto x LINE <= 1.0.0 – Unauthenticated REST API Endpoints Call |
| CVE-2026-83547 | 6.8 MEDIUM | Xpro Elementor Addons 1.6.0 - 1.7.3 - Contributor+ Stored XSS via Multiple Widgets |
| CVE-2026-10821 | 6.6 MEDIUM | Yoast SEO Premium < 27.6.1 - Author+ Arbitrary .htaccess Directive Injection to RCE |
| CVE-2026-2688 | 6.5 MEDIUM | CM HIPAA Forms < 3.2.0 - Unauthenticated Authorization Bypass |
| CVE-2024-3773 | 5.9 MEDIUM | LiveJournal Shortcode <= 1.1.1 - Contributor+ Stored XSS via Shortcode |
| CVE-2026-2811 | 5.4 MEDIUM | Ajaxify Comments < 3.2 - Unauthenticated HTTP Header Injection |
| CVE-2026-8151 | 5.4 MEDIUM | Simple Membership MailChimp Integration < 1.9.8 - API Key Update via CSRF |
| CVE-2026-17563 | 5.3 MEDIUM | WP User Frontend < 4.3.11 - Unauthenticated Post Creation via Subscription-Gated Form |
| CVE-2026-78153 | 5.3 MEDIUM | Restrict User Access 2.6 - 2.8 - Unauthenticated Content Protection Bypass via REST API Ro |
| CVE-2026-83533 | 5.3 MEDIUM | WP Express Checkout < 2.4.9 - Unauthenticated Payment Bypass via wpec_process_payment |
| CVE-2025-15489 | 5.3 MEDIUM | Passster < 4.2.24 - Password Protection Bypass |
| CVE-2026-77794 | 5.3 MEDIUM | RegistrationMagic 6.0.0.0 - 6.0.9.8 - Unauthenticated Payment Bypass via Zero Quantity |
| CVE-2025-15490 | 5.3 MEDIUM | Passster < 4.2.26 - Global Protection Bypass |
| CVE-2025-8945 | 5.3 MEDIUM | Wp Edit Password Protected < 1.3.5 - Protection Bypass via REST API |
| CVE-2025-15481 | 5.3 MEDIUM | Notification Bar for WordPress <= 1.1.8 – Unauthenticated Subscriber Data Disclosure |
| CVE-2026-77793 | 5.3 MEDIUM | RegistrationMagic < 6.0.9.9 - Unauthenticated Payment Bypass via Omitted Price Field |
| CVE-2026-81571 | 4.8 MEDIUM | Brave Popup Builder < 0.8.8 - Unauthenticated Arbitrary Shortcode Execution via UTM Parame |
Showing top 20 of 66 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: Unknown
-
CVE-2026-2811
Ajaxify Comments < 3.2 - Unauthenticated HTTP Header Injecti -
CVE-2025-9314
Developer Tools <= 1.1.3 – Unauthenticated Arbitrary File Up -
CVE-2025-8945
Wp Edit Password Protected < 1.3.5 - Protection Bypass via R -
CVE-2025-15490
Passster < 4.2.26 - Global Protection Bypass -
CVE-2025-15489
Passster < 4.2.24 - Password Protection Bypass
V. Comments for CVE-2026-82884
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