GHSA-XFF3-5C9P-2MR4 New API: Stripe Webhook Signature Bypass via Empty Secret Enables Unlimited Quota Fraud

Summary A critical vulnerability exists in the Stripe webhook handler that allows an unauthenticated attacker to forge webhook events and credit arbitrary quota to their account without making any payment. The vulnerability stems from three compounding flaws: 1. The Stripe webhook endpoint does n...

Insecure Default Initialization of Resource

Overview Affected versions of this package are vulnerable to Insecure Default Initialization of Resource via the StripeWebhook process. An attacker can gain unauthorized quota credits and perform financial fraud by forging webhook requests with a publicly computable signature when the webhook...

PT-2026-35034

Name of the Vulnerable Software and Affected Versions New API versions prior to 0.12.10 Description A flaw in the Stripe webhook handler allows unauthenticated attackers to forge webhook events and credit arbitrary quota to their accounts without payment. This is caused by three issues: the syste...

CVE-2026-5167

The Masteriyo LMS – Online Course Builder for eLearning, LMS & Education plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in versions up to and including 2.1.7. This is due to insufficient webhook signature verification in the handlewebhook function. The...

BIT-DISCOURSE-2026-26078 Discourse has authentication bypass vulnerability in the Patreon plugin webhook endpoint

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-26078

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-26078 Discourse has authentication bypass vulnerability in the Patreon plugin webhook endpoint

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-26078 Discourse has authentication bypass vulnerability in the Patreon plugin webhook endpoint

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-26078

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-26078 Discourse has authentication bypass vulnerability in the Patreon plugin webhook endpoint

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

EUVD-2026-8856

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-26078

Discourse’s Patreon webhook vulnerability (CVE-2026-26078) affects releases prior to 2025.12.2, 2026.1.1, and 2026.2.0. When patreon_webhook_secret is blank, an attacker can generate valid webhook signatures by computing an HMAC-MD5 with an empty key, using the known request body to forge arbitra...

PT-2026-22153

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2025.12.2 Discourse versions prior to 2026.1.1 Discourse versions prior to 2026.2.0 Description Discourse, an open source discussion platform, is susceptible to a security issue. When the patreon webhook secret site...

📄 WordPress StoryChief 1.0.42 Shell Upload

This Metasploit module exploits an unauthenticated arbitrary file upload vulnerability in the StoryChief WordPress plugin less than or equal to 1.0.42. The plugin exposes a webhook endpoint at /wp-json/storychief/webhook which accepts a forged HMAC. Because the plugin uses an empty secret for HMA...

Exploit for CVE-2025-65945

CVE-2025-65945: node-jws Signature Bypass This is a proof of...

CVE-2025-10294 OwnID Passwordless Login <= 1.3.4 - Authentication Bypass

The OwnID Passwordless Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.3.4. This is due to the plugin not properly checking if the ownidsharedsecret value is empty prior to authenticating a user via JWT. This makes it possible for...

PT-2025-42291

Name of the Vulnerable Software and Affected Versions OwnID Passwordless Login plugin for WordPress versions prior to 1.3.5 Description The OwnID Passwordless Login plugin for WordPress is susceptible to an Authentication Bypass. This occurs because the plugin does not adequately verify if the...

PT-2024-31445 · Unknown · Lemonldap::Ng

Name of the Vulnerable Software and Affected Versions: LemonLDAP::NG versions 2.18.x through 2.19.1 Description: The issue is related to incorrect credential validation, allowing attackers to bypass OAuth2 client authentication. This can be achieved by providing an empty client password parameter...