BIT-DISCOURSE-2026-91159 Discourse: Stored oEmbed HTML injection via allowed iframe

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, oEmbed processing treated an entire attacker-controlled HTML fragment as trusted when the fragment contained an iframe whose source matched the configured allowlist. A user with posting permissio...

What It Is, Not What It Says: Securing Agentic Browsing Interactions with Web Semantics

AI agents increasingly browse the web on users' behalf, yet they consume webpages as screenshots or text, exposing their LLMs to unvetted third-party content. Browsers enforce semantics under which what an element can do depends on what it is and where it comes from, not on what it says. Agents...

CVE-2026-91159

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, oEmbed processing treated an entire attacker-controlled HTML fragment as trusted when the fragment contained an iframe whose source matched the configured allowlist. A user with posting permissio...

CVE-2026-91159

The open-source discussion platform Discourse is vulnerable to a stored oEmbed HTML injection (CWE-79) prior to versions 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9 . The root cause is that oEmbed processing treats an entire attacker-controlled HTML fragment as trusted if it contains an iframe fro...

CVE-2026-91159 Discourse: Stored oEmbed HTML injection via allowed iframe

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, oEmbed processing treated an entire attacker-controlled HTML fragment as trusted when the fragment contained an iframe whose source matched the configured allowlist. A user with posting permissio...

EUVD-2026-101299

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, oEmbed processing treated an entire attacker-controlled HTML fragment as trusted when the fragment contained an iframe whose source matched the configured allowlist. A user with posting permissio...

CVE-2026-91159 Discourse: Stored oEmbed HTML injection via allowed iframe

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, oEmbed processing treated an entire attacker-controlled HTML fragment as trusted when the fragment contained an iframe whose source matched the configured allowlist. A user with posting permissio...

PT-2026-114332

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.9.0 Discourse versions prior to 2026.8.1 Discourse versions prior to 2026.7.3 Discourse versions prior to 2026.1.9 Description An issue exists in oEmbed processing where an entire attacker-controlled HTML...

CVE-2026-91159: Improper Neutralization of Input During Web Page Generation

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, oEmbed processing treated an entire attacker-controlled HTML fragment as trusted when the fragment contained an iframe whose source matched the configured allowlist. A user with posting permissio...

EUVD-2026-91065

PictShare before 3.7.1 contains an information disclosure vulnerability that allows unauthenticated attackers to obtain the secret deletecode and uploader metadata by calling the API::info endpoint which returns the complete raw metadata object without a field whitelist. Attackers can use the...

CVE-2026-104051

PictShare versions prior to 3.7.1 are vulnerable to an information disclosure vulnerability via the API::info() endpoint. The root cause is the lack of a field whitelist, allowing unauthenticated attackers to retrieve complete raw metadata objects. By using a publicly visible file hash, an attack...

CVE-2026-104051: Insufficiently Protected Credentials

PictShare before 3.7.1 contains an information disclosure vulnerability that allows unauthenticated attackers to obtain the secret deletecode and uploader metadata by calling the API::info endpoint which returns the complete raw metadata object without a field whitelist. Attackers can use the...

PT-2026-82632

When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and...

CVE-2026-12491

A flaw was found in vLLM, an open-source library for large language model inference. This vulnerability arises from improper handling of image metadata, specifically EXIF orientation and PNG transparency tRNS data, during image processing. When images are converted to RGB, transparency informatio...

CVE-2026-39354

Scoold is a Q&A and a knowledge sharing platform for teams. Prior to 1.66.2, an authenticated authorization flaw in Scoold allows any logged-in, low-privilege user to overwrite another user's existing question by supplying that question's public ID as the postId parameter to POST /questions/ask...

CVE-2026-22665

prompts.chat prior to commit 1464475, contains an identity confusion vulnerability due to inconsistent case-sensitive and case-insensitive handling of usernames across write and read paths, allowing attackers to create case-variant usernames that bypass uniqueness checks. Attackers can exploit...

CVE-2025-12782

The Beaver Builder – WordPress Page Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.9.4. This is due to the plugin not properly verifying a user's authorization in the disable function. This makes it possible for authenticated attackers,...

CVE-2025-12782

The Beaver Builder – WordPress Page Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.9.4. This is due to the plugin not properly verifying a user's authorization in the disable function. This makes it possible for authenticated attackers,...

CVE-2025-12782 Beaver Builder – WordPress Page Builder <= 2.9.4 - Missing Authorization to Authenticated (Contributor+) Builder Status Tampering

The Beaver Builder – WordPress Page Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.9.4. This is due to the plugin not properly verifying a user's authorization in the disable function. This makes it possible for authenticated attackers,...

CVE-2025-12782: Missing Authorization

The Beaver Builder – WordPress Page Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.9.4. This is due to the plugin not properly verifying a user's authorization in the disable function. This makes it possible for authenticated attackers,...