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CVE-2026-16618— ImproveSEO <= 2.0.11 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execution

AI Predicted 9.8 Difficulty: Trivial
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I. Basic Information for CVE-2026-16618

Vulnerability Information
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Vulnerability Title
ImproveSEO <= 2.0.11 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execution
Source: CVE Program / CVE List V5
Vulnerability Description
The Improve SEO WordPress plugin through 2.0.11 does not properly validate uploaded files, checking only the file content type while writing the file with the attacker-supplied extension into a publicly accessible directory, allowing unauthenticated users to upload executable PHP files and achieve remote code execution.
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

VendorProductAffected VersionsCPESubscribe
UnknownImprove SEO 0 ~ 2.0.11 -

II. Public POCs for CVE-2026-16618

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III. Intelligence Information for CVE-2026-16618

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Vendor Advisories for CVE-2026-16618 (1)

Same Patch Batch · Unknown · 2026-08-04 · 24 CVEs total

CVE-2026-16056Contest Gallery < 30.0.7 - Subscriber+ OpenAI Prompt History Disclosure via post_cg_get_op
CVE-2026-10526EmbedPress < 4.6.1 - Unauthenticated Blind SSRF
CVE-2026-11366MonsterInsights < 11.1.0 - Unauthenticated Measurement Protocol Secret Update via Empty-Ke
CVE-2026-16536Simple Google Calendar Outlook Events Widget < 3.1.0 - Unauthenticated SSRF via calendar_i
CVE-2026-16623Create Block Theme < 2.10.0 - Admin+ PHP Code Injection via Pattern Save (Multisite)
CVE-2026-12698wpForo Forum < 3.1.3 - Subscriber+ Account Status and Reputation Manipulation via Profile
CVE-2026-14939Visualizer: Tables and Charts Manager < 4.0.6 - Contributor+ Server-Side Request Forgery v
CVE-2026-14816The GDPR Framework < 2.4.0 - Unauthenticated Consent Record Forgery and Do Not Sell Reques
CVE-2026-14872Database for Contact Form 7, WPforms, Elementor forms < 1.5.5 - Authenticated SQL Injectio
CVE-2026-14824Quiz And Survey Master < 11.2.2 - Contributor+ Stored XSS via Polar Question
CVE-2026-14848Paid Member Subscriptions < 3.0.8 - Subscriber+ Cross-User Subscription Hijack via process
CVE-2026-16035miniOrange 2FA < 6.2.7 - Subscriber+ Arbitrary-Recipient OTP Send
CVE-2026-16296Clearfy < 2.4.3 - Open Redirect via Cyrlitera 404 Handler
CVE-2026-15233Nested Pages < 3.2.15 - Editor+ Stored XSS via Post Title
CVE-2026-15958Easy Dropbox Integration < 2.2.0 - Unauthenticated Arbitrary Connected Dropbox File Access
CVE-2026-16293Blubrry PowerPress < 11.16.11 - Contributor+ Stored XSS via Podcast Episode Chapters URL
CVE-2026-16068Brizy - Page Builder < 2.8.19 - Author+ Stored XSS via brizy_set_project Global Project Co
CVE-2026-16069Brizy - Page Builder < 2.8.19 - Contributor+ Stored XSS via Featured Image Focal Point
CVE-2026-16070Brizy - Page Builder < 2.8.19 - Contributor+ Template Type Update via IDOR
CVE-2026-16548Bit Assist < 1.8.2 - Unauthenticated Arbitrary File Upload via Response Endpoint

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

IV. Related Vulnerabilities

Same vendor: Unknown

V. Comments for CVE-2026-16618

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