CVE-2026-27151

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the moveposts action only checked canmoveposts? on the source topic but never validated write permissions on the destination topic. This allowed TL4 users and category group moderators to move...

CVE-2026-27162

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, postsnearby was checking topic access but then returning all posts regardless of type, including whispers that should only be visible to whisperers. Use Post.securedguardian to properly filter po...

CVE-2026-28409

creationtimestamp| type| source ---|---|--- 2026-02-28 00:56:07+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mfuzcrimck2u 2026-02-28 01:30:31+00:00| seen| https://infosec.exchange/users/offseq/statuses/116145666777961188 2026-02-28 01:30:32+00:00| seen|...

CVE-2026-3255

creationtimestamp| type| source ---|---|--- 2026-02-27 23:24:45+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mfuu7hwlqs2x 2026-02-27 23:30:45+00:00| seen| https://bsky.app/profile/infosec.skyfleet.blue/post/3mfuuk6yvv62a...

CVE-2026-26207

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, discourse-policy plugin allows any authenticated user to interact with policies on posts they do not have permission to view. The PolicyController loads posts by ID without verifying the current...

CVE-2025-11251

creationtimestamp| type| source ---|---|--- 2026-02-27 13:31:25+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mftt2i2t3x2n 2026-02-27 13:38:58+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mftthya3zh27 2026-02-27 18:00:15+00:00| seen|...

CVE-2026-0980

creationtimestamp| type| source ---|---|--- 2026-02-27 08:18:03+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mftbk4vnqy2u 2026-02-27 08:18:14+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mftbkhgxec2v 2026-02-27 10:03:14+00:00| seen|...

CVE-2026-3301

creationtimestamp| type| source ---|---|--- 2026-02-27 06:00:31+00:00| seen| https://bsky.app/profile/offseq.bsky.social/post/3mfszu67jax2m 2026-02-27 06:19:03+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mft2vd6lmq2s 2026-02-27 07:03:30+00:00| seen|...

CVE-2026-28364

creationtimestamp| type| source ---|---|--- 2026-02-27 04:24:53+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mfsuj76ohg2x 2026-02-27 04:25:24+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mfsuk4rdbu26 2026-02-27 05:35:23+00:00| seen|...

CVE-2026-28363

creationtimestamp| type| source ---|---|--- 2026-02-27 04:24:46+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mfsuixv7xg25 2026-02-27 04:25:16+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mfsujvdclc2u 2026-02-27 05:31:06+00:00| seen|...

n8n has Webhook Forgery on Zendesk Trigger Node

Impact An attacker who knows the webhook URL of a workflow using the ZendeskTrigger node could send unsigned POST requests and trigger the workflow with arbitrary data. The node does not verify the HMAC-SHA256 signature that Zendesk attaches to every outbound webhook, allowing any party to inject...

CVE-2026-27151

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the moveposts action only checked canmoveposts? on the source topic but never validated write permissions on the destination topic. This allowed TL4 users and category group moderators to move...

CVE-2026-27162

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, postsnearby was checking topic access but then returning all posts regardless of type, including whispers that should only be visible to whisperers. Use Post.securedguardian to properly filter po...

CVE-2026-27154

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, a user full name can be evaluated as raw HTML when the following settings are set: displaynameonposts = true; and prioritizeusernameinux = false. Editing a post of a malicious user would trigger ...

CVE-2026-27154

Discourse contains an XSS flaw in which a user’s full name can be evaluated as raw HTML when display_name_on_posts is true and prioritize_username_in_ux is false. The issue occurs when editing a post by a malicious user, potentially triggering XSS. Affected versions include prior to 2025.12.2, 20...

CVE-2026-27154 Discourse has XSS when editing a malicious post

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, a user full name can be evaluated as raw HTML when the following settings are set: displaynameonposts = true; and prioritizeusernameinux = false. Editing a post of a malicious user would trigger ...

CVE-2026-27162

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, postsnearby was checking topic access but then returning all posts regardless of type, including whispers that should only be visible to whisperers. Use Post.securedguardian to properly filter po...

EUVD-2026-8892

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, postsnearby was checking topic access but then returning all posts regardless of type, including whispers that should only be visible to whisperers. Use Post.securedguardian to properly filter po...

CVE-2026-27151 Discourse doesn't validate destination topic when moving posts

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the moveposts action only checked canmoveposts? on the source topic but never validated write permissions on the destination topic. This allowed TL4 users and category group moderators to move...

CVE-2026-27151

Discourse prior to versions 2025.12.2, 2026.1.1, and 2026.2.0 had a validation flaw where move_posts checked only source topic write permissions and did not validate destination topic permissions, allowing TL4 users and category moderators to move posts into topics in categories with read-only or...