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CVE-2026-86801— To Do List Member 1.4 - 1.6 - Unauthenticated Stored XSS, File Listing and Deletion via Unprotected Upload Handler

Quick assessment

Affected
Unknown To Do List Member
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.

“To Do List Member”WordPress 插件从 1.4 到 1.6 版本包含一个文件上传端点。该端点不会加载 WordPress，因此不执行任何形式的身份验证、权限检查或 nonce（令牌）验证；它仅校验上传文件的文件名，而不检查文件内容。这使得未认证用户能够存储由站点自身源（origin）提供的活动内容（active content），并可以列出和删除已暂存的这些文件。

CVSS 8.8 · High
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I. Basic Information for CVE-2026-86801

Vulnerability Information
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Vulnerability Title
To Do List Member 1.4 - 1.6 - Unauthenticated Stored XSS, File Listing and Deletion via Unprotected Upload Handler
Source: CVE Program / CVE List V5
Vulnerability Description
The To Do List Member WordPress plugin from 1.4 through 1.6 ships a file upload endpoint that does not load WordPress and therefore applies no authentication, capability or nonce check of any kind, and validates only the name of an uploaded file rather than its content, allowing unauthenticated users to store active content served from the site's own origin, and to list and delete the files already staged there.
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 To Do List Member 1.4 ~ 1.6 -

II. Public POCs for CVE-2026-86801

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III. Intelligence Information for CVE-2026-86801

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Security Blog Posts for CVE-2026-86801 (1)

Same Patch Batch · Unknown · 2026-09-17 · 29 CVEs total

CVE-2026-87963 8.6 HIGH Yo 1.1 - 1.3.1 - Unauthenticated SQL Injection via username Parameter
CVE-2026-87829 4.3 MEDIUM Checkout Field Manager < 7.9.7 - Subscriber+ Arbitrary Attachment Deletion via Unvalidated
CVE-2026-87831 4.3 MEDIUM Checkout Field Manager < 7.9.7 - Subscriber+ Arbitrary Attachment Deletion via Customer Ad
CVE-2026-91017 3.7 LOW Robokassa payment gateway for Woocommerce < 1.8.9 - Unauthenticated Payment Bypass via For
CVE-2025-15697 Dictionary <= 1.0 - Reflected XSS via Multiple Parameters
CVE-2026-85128 Choose User Role at Registration for WooCommerce < 1.3.3 - Unauthenticated Privilege Escal
CVE-2026-85130 WPLP Cookie Consent < 4.4.4 - Unauthenticated Stored XSS via Consent Logs
CVE-2026-86707 Private Feed Key <= 0.1 - Unauthenticated Authentication Bypass via 'feedkey' Parameter
CVE-2026-86709 The Pressengine <= 1.0 - Unauthenticated Authentication Bypass
CVE-2026-86710 Login with QR <= 1.0.0 - Unauthenticated Authentication Bypass via 'autologin_code' Parame
CVE-2026-86446 LearnPress 4.4.3 - 4.4.6 - Unauthenticated Quiz Answer Disclosure via check-answer REST En
CVE-2026-87836 Comments Import & Export 2.1.11 - 2.5.3 - Author+ Comment PII Disclosure via Export
CVE-2026-87786 Dewa Kirim <= 1.0.0 - Unauthenticated Stored XSS via Checkout Coordinates
CVE-2026-86824 Newsletter < 9.3.8 - Unauthenticated Subscriber PII Disclosure and Modification via Predic
CVE-2026-86788 HT Mega 3.2.0 - 3.2.5 - Contributor+ Stored XSS via Section Headline Tag
CVE-2026-90922 Paid Member Subscriptions < 3.0.9 - Unauthenticated Membership Payment Bypass via PayPal S
CVE-2026-88792 Dictionary <= 1.0 - Unauthenticated Stored XSS via Direct Dictionary Update
CVE-2026-88795 wpShopGermany IT-RECHT KANZLEI < 2.4 - Unauthenticated RCE via Predictable API Token
CVE-2026-88904 PuppyFW <= 0.4.4 - Subscriber+ Arbitrary Blog Options Update and Deletion Leading to Privi
CVE-2026-90923 Autopay < 5.0.1 - Unauthenticated Cross-Customer Order Payment Parameter Disclosure and De

Showing top 20 of 29 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same vendor: Unknown

V. Comments for CVE-2026-86801

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