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CVE-2026-18795

Missing server side validation allowed user to quarantine a DM and GM post

Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to enforce DM/GM check on server side which allows an authenticated user to quarantine a post belonging to DM or GM via direct API call.. Mattermost Advisory ID: MMSA-2026-00756

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Mattermost
Products
Mattermost Mattermost Server
CVE-2026-18223

Mattermost invitation tokens not bound to invited email address allowing unauthorized team and private channel access

Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to validate the invited recipient's email address when redeeming team and guest invitation tokens, which allows an authenticated attacker to join a team or gain unauthorized access to private channels via a forwarded or leaked invitation link.. Mattermost Advisory ID: MMSA-2026-00747

CVSS 3.1 · 5 Medium EPSS < 1% KEV · Not listed
Vendors
Mattermost
Products
Mattermost Mattermost Server
CVE-2026-18256

Private team metadata disclosure via the team search API

Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to properly restrict private teams from public team search results, which allows an authenticated user without permission to list private teams to disclose the ID, name, and display name of private teams via a modified team search request. Mattermost Advisory ID: MMSA-2026-00748

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Mattermost
Products
Mattermost Mattermost Server
CVE-2026-18799

Mattermost Server fails to restrict Slack import account binding, allowing team admins to forge posts as existing users

Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to restrict Slack import account binding to system administrator-initiated imports which allows an authenticated attacker with team admin privileges to force-add existing Mattermost users to their team and forge posts attributed to those users' identities via a crafted Slack export containing target users' email addresses.. Mattermost Advisory ID: MMSA-2026-00757

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Mattermost
Products
Mattermost Mattermost Server
CVE-2026-18551

Mattermost guest account privilege escalation via member roles API

Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to validate the combination of guest and admin scheme roles which allows an authenticated attacker to escalate a guest account to team or channel admin via a crafted PUT request to the member roles API endpoint.. Mattermost Advisory ID: MMSA-2026-00752

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Mattermost
Products
Mattermost Mattermost Server
CVE-2026-52708

WordPress WP User Frontend plugin <= 4.3.13 - Broken Access Control vulnerability

Missing Authorization vulnerability in weDevs WP User Frontend wp-user-frontend allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP User Frontend: from n/a through 4.3.13.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Wedevs Wordpress-extensions
Products
Wp User Frontend Wp User Frontend
CVE-2026-54871

WordPress ShopBuilder – Elementor WooCommerce Builder Addons plugin <= 3.4.2 - Broken Access Control vulnerability

Missing Authorization vulnerability in Mamunur Rashid ShopBuilder – Elementor WooCommerce Builder Addons shopbuilder allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects ShopBuilder – Elementor WooCommerce Builder Addons: from n/a through 3.4.2.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
—
Products
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CVE-2026-39782

WordPress Kali Forms plugin <= 2.4.27 - Broken Access Control vulnerability

Missing Authorization vulnerability in Kaliforms Kali Forms kali-forms allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Kali Forms: from n/a through 2.4.27.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
—
Products
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CVE-2026-25450

WordPress User Registration plugin <= 5.3.0 - Broken Access Control vulnerability

Missing Authorization vulnerability in ThemeGrill User Registration user-registration allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects User Registration: from n/a through 5.3.0.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
—
Products
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CVE-2026-118088

WordPress WPFunnels plugin <= 3.13.5 - Broken Access Control vulnerability

Missing Authorization vulnerability in WPFunnels Team WPFunnels wpfunnels allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WPFunnels: from n/a through 3.13.5.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
—
Products
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CVE-2026-116856

WordPress Flexible Quantity – Measurement Price Calculator for WooCommerce plugin <= 2.3.24 - Broken Access Control vulnerability

Missing Authorization vulnerability in WP Desk Flexible Quantity – Measurement Price Calculator for WooCommerce flexible-quantity-measurement-price-calculator-for-woocommerce allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Flexible Quantity – Measurement Price Calculator for WooCommerce: from n/a through 2.3.24.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
—
Products
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CVE-2026-116846

WordPress WP User Manager plugin <= 2.9.26 - Broken Access Control vulnerability

Missing Authorization vulnerability in WP User Manager WP User Manager wp-user-manager allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP User Manager: from n/a through 2.9.26.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
—
Products
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CVE-2026-116406

WordPress Webba Booking plugin <= 6.5.4 - Broken Access Control vulnerability

Missing Authorization vulnerability in Webba Plugins Webba Booking webba-booking-lite allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Webba Booking: from n/a through 6.5.4.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
—
Products
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CVE-2026-114181

WordPress Taxi Booking Manager for WooCommerce plugin <= 2.1.6 - Broken Access Control vulnerability

Missing Authorization vulnerability in Magepeople inc. Taxi Booking Manager for WooCommerce ecab-taxi-booking-manager allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Taxi Booking Manager for WooCommerce: from n/a through 2.1.6.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
—
Products
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CVE-2026-100404

Zulip: Guests can read new messages in non-subscribed public channels

Zulip is an open-source team collaboration tool. In Zulip Server versions through 12.1, guest users can receive new message events for public channels outside their subscriptions. A guest can trigger the issue by registering an event queue with parameters that request messages from an unsubscribed public channel, or an existing event queue can remain affected after the guest's access to the channel is removed. The flaw discloses new public-channel messages to the guest. This issue is fixed in version 12.2.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Zulip
Products
Zulip
CVE-2026-39735

WordPress JetEngine plugin <= 3.9.0.1 - Broken Access Control vulnerability

Missing Authorization vulnerability in Crocoblock JetEngine jet-engine allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects JetEngine: from n/a through 3.9.0.1.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Crocoblock Wordpress-extensions
Products
Jetengine Jetengine
CVE-2026-114619

Authlib: OpenID implicit grant checks raw scope instead of allowed scope before issuing ID tokens

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, OpenIDImplicitGrant.validate_authorization_request() checks the client-controlled raw request.payload.scope for openid after the parent grant has filtered allowed scopes into request.scope. A registered client permitted an ID token response type but not the openid scope can add openid to the request, obtain user consent, and receive a signed ID token containing the user's subject and allowed profile claims. Authorization code flow and deployments that allow openid for every client permitted an ID token response are not affected. In authlib/oidc/core/grants/implicit.py, OpenIDImplicitGrant.validate_authorization_request() checks request.payload.scope instead of the filtered request.scope. This issue is fixed in version 1.9.0.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Authlib
Products
Authlib