Hunting-Bugs

2026 Practical Bug Bounty Guide Built on real-world experie...

CVE-2025-14481

The CVE concerns the WordPress Yoast SEO plugin (versions up to and including 26.5). The root cause is insufficient authorization checks in the Meta Search REST API endpoint, which fails to verify post ownership. This allows authenticated attackers with Contributor-level access or higher to read ...

CVE-2025-14481 Yoast SEO <= 26.5 - Insecure Direct Object Reference to Authenticated (Contributor+) Sensitive Information Exposure via 'post_id' Parameter

The Yoast SEO plugin for WordPress is vulnerable to Insecure Direct Object References in all versions up to, and including, 26.5. This is due to insufficient authorization checks in the Meta Search REST API endpoint that fail to verify post ownership. This makes it possible for authenticated...

WordPress User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin <= 5.1.5 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Media Deletion vulnerability

Authenticated Subscriber+ Insecure Direct Object Reference to Arbitrary Media Deletion vulnerability discovered by Supakiad S. m3ez - E-CQURITY Thailand in WordPress Plugin User Registration versions = 5.1.5...

WordPress Meta Field Block – Display custom fields in the Block Editor without coding plugin <= 1.5.1 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary User Meta Exposure vulnerability

Insecure Direct Object Reference to Authenticated Contributor+ Arbitrary User Meta Exposure vulnerability discovered by Osvaldo Noe Gonzalez Del Rio Os - krei.dev | ogbuilders.io in WordPress Plugin Meta Field Block versions = 1.5.1...

CVE-2025-14481: Missing Authorization

The Yoast SEO plugin for WordPress is vulnerable to Insecure Direct Object References in all versions up to, and including, 26.5. This is due to insufficient authorization checks in the Meta Search REST API endpoint that fail to verify post ownership. This makes it possible for authenticated...

CVE-2026-44776 Kavita: IDOR in /api/Download/*

Kavita is a cross platform reading server. Prior to 0.9.0, the download, size-check, and chapter metadata endpoints do not enforce library-level authorization. A low-privileged user who knows or guesses a chapterId, volumeId, or seriesId belonging to a library they are not assigned to can downloa...

WordPress Yoast SEO – Advanced SEO with real-time guidance and built-in AI plugin <= 26.5 - Insecure Direct Object Reference to Authenticated (Contributor+) Sensitive Information Exposure vulnerability

Insecure Direct Object Reference to Authenticated Contributor+ Sensitive Information Exposure vulnerability discovered by NumeX in WordPress Plugin Yoast SEO versions = 26.5...

Concrete CMS is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog

Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog. This can cause Cross-entity state tampering with view-only permission on one entry. To be affected, a website has to be using express and relying on express entity...

CVE-2026-38587

An Insecure Direct Object Reference IDOR vulnerability was discovered in ONLYOFFICE DocSpace before 3.2.1. The flaw exists in multiple REST API endpoints. This allows authenticated users with low-level permissions User or Guest to retrieve sensitive information, such as the Owner's unique...

CVE-2026-38587

An Insecure Direct Object Reference IDOR vulnerability was discovered in ONLYOFFICE DocSpace before 3.2.1. The flaw exists in multiple REST API endpoints. This allows authenticated users with low-level permissions User or Guest to retrieve sensitive information, such as the Owner's unique...

PT-2026-43264

An Insecure Direct Object Reference IDOR vulnerability was discovered in ONLYOFFICE DocSpace before 3.2.1. The flaw exists in multiple REST API endpoints. This allows authenticated users with low-level permissions User or Guest to retrieve sensitive information, such as the Owner's unique...

CVE-2026-8347

Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog. This can cause Cross-entity state tampering with view-only permission on one entry. To be affected, a website has to be using express and relying on express entity...

CVE-2026-8347

Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog. This can cause Cross-entity state tampering with view-only permission on one entry. To be affected, a website has to be using express and relying on express entity...

EUVD-2026-31442

Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog. This can cause Cross-entity state tampering with view-only permission on one entry. To be affected, a website has to be using express and relying on express entity...

CVE-2026-8347 Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in Express association Reorder dialog

Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog. This can cause Cross-entity state tampering with view-only permission on one entry. To be affected, a website has to be using express and relying on express entity...

CVE-2026-8679

The AudioIgniter plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 2.0.2. This is due to the handleplaylistendpoint function hooked to templateredirect accepting a user-controlled playlist ID via the audioigniterplaylistid query var or the...

EUVD-2026-31421

The AudioIgniter plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 2.0.2. This is due to the handleplaylistendpoint function hooked to templateredirect accepting a user-controlled playlist ID via the audioigniterplaylistid query var or the...

CVE-2026-8679 AudioIgniter Music Player <= 2.0.2 - Unauthenticated Insecure Direct Object Reference to 'audioigniter_playlist_id' Parameter

The AudioIgniter plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 2.0.2. This is due to the handleplaylistendpoint function hooked to templateredirect accepting a user-controlled playlist ID via the audioigniterplaylistid query var or the...

CVE-2026-8679 AudioIgniter Music Player <= 2.0.2 - Unauthenticated Insecure Direct Object Reference to 'audioigniter_playlist_id' Parameter

The AudioIgniter plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 2.0.2. This is due to the handleplaylistendpoint function hooked to templateredirect accepting a user-controlled playlist ID via the audioigniterplaylistid query var or the...