GHSA-XPP7-93X6-V29M XSS in Ghost's ActivityPub client

Impact The ActivityPub client in Ghost was vulnerable to JavaScript injection on posts shared by a maliciously customised ActivityPub server. Vulnerable Versions This vulnerability is present in the @tryghost/activitypub package up to v3.0.8. All prior versions are also affected. Patches...

CVE-2026-15920

A flaw was found in Django. The django.contrib.admin.utils.displayforfield function renders URLField values as clickable links in the administrative interface without proper validation. If an application persists URLField data containing an unsafe scheme without running model validation, a remote...

CVE-2026-70588

Ghost is a Node.js content management system. From 5.26.0 until 6.54.1, the Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content. This issue is fixed in version 6.54.1...

Ghost: File Upload Content-Type Spoofing

Impact Insufficient validation of the client-supplied Content-Type on Ghost's Admin API file upload endpoint allowed uploaded files to be served from the site with an attacker-chosen content type on S3/GCS storage backends. On installations that serve uploaded files from the same origin as the...

NPM: Ghost: Cross-Site Scripting in Universal Import

NPM: Ghost: Cross-Site Scripting in Universal Import vulnerability discovered by ? in WordPress Npm ghost versions = 5.26.0, 6.54.1...

GHSA-2GX6-7GX2-WWCF Ghost: Cross-Site Scripting in Universal Import

Impact The Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content. Vulnerable versions This vulnerability is present in Ghost from v5.26.0 up to v6.54.0. Patches v6.54.1 contains a fix for this issue. How to update For self-hosters...

Ghost: Cross-Site Scripting in Universal Import

Impact The Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content. Vulnerable versions This vulnerability is present in Ghost from v5.26.0 up to v6.54.0. Patches v6.54.1 contains a fix for this issue. How to update For self-hosters...

CVE-2026-70588

CVE-2026-70588 affects the Ghost CMS (Node.js). From 5.26.0 through 6.54.1, the Universal Import feature in Ghost Admin did not properly sanitize imported content, causing an XSS in post content. The issue has been fixed in version 6.54.1. Affected versions should upgrade to 6.54.1 or later to re...

CVE-2026-70588

Ghost is a Node.js content management system. From 5.26.0 until 6.54.1, the Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content. This issue is fixed in version 6.54.1...

EUVD-2026-52928

Ghost is a Node.js content management system. From 5.26.0 until 6.54.1, the Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content. This issue is fixed in version 6.54.1...

CVE-2026-70588 Ghost: Cross-Site Scripting in Universal Import

Ghost is a Node.js content management system. From 5.26.0 until 6.54.1, the Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content. This issue is fixed in version 6.54.1...

CVE-2026-70588 Ghost: Cross-Site Scripting in Universal Import

Ghost is a Node.js content management system. From 5.26.0 until 6.54.1, the Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content. This issue is fixed in version 6.54.1...

GHSA-PWXH-7358-JQ2X Open WebUI: Stored XSS via unescaped KaTeX render-error fallback in rendered messages

Summary Any authenticated user can store a chat message whose math block makes KaTeX fail with a stack overflow instead of a parse error. When that happens the renderer falls back to inserting the original math source into the page as HTML rather than as text, so script in the message runs in the...

Open WebUI: Stored XSS via unescaped KaTeX render-error fallback in rendered messages

Summary Any authenticated user can store a chat message whose math block makes KaTeX fail with a stack overflow instead of a parse error. When that happens the renderer falls back to inserting the original math source into the page as HTML rather than as text, so script in the message runs in the...

Cross-site Scripting (XSS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Cross-site Scripting XSS via the KatexRenderer process in the message rendering component. An attacker can execute arbitrary scripts in the browser of any user who views a crafted message by embedding malicio...

CVE-2026-70492 Open WebUI: Stored XSS via unescaped KaTeX render-error fallback in rendered messages

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.0, src/lib/components/chat/Messages/Markdown/KatexRenderer.svelte could store and render a chat message whose math block makes KaTeX fail with a stack overflow instead of a parse error. Th...

CVE-2026-70492 Open WebUI: Stored XSS via unescaped KaTeX render-error fallback in rendered messages

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.0, src/lib/components/chat/Messages/Markdown/KatexRenderer.svelte could store and render a chat message whose math block makes KaTeX fail with a stack overflow instead of a parse error. Th...

EUVD-2026-52895

CVAT is an open source interactive video and image annotation tool for computer vision. Versions 2.5.0 through 2.66.0 contain a XSS vulnerability that can be accessed through annotation guide assets. When CVAT serves the files attached to an annotation guide, it labels them with a media type...

CVE-2026-65986 CVAT has stored XSS via annotation guide assets

CVAT is an open source interactive video and image annotation tool for computer vision. Versions 2.5.0 through 2.66.0 contain a XSS vulnerability that can be accessed through annotation guide assets. When CVAT serves the files attached to an annotation guide, it labels them with a media type...

CVE-2026-65986

CVAT is an open source interactive video and image annotation tool for computer vision. Versions 2.5.0 through 2.66.0 contain a XSS vulnerability that can be accessed through annotation guide assets. When CVAT serves the files attached to an annotation guide, it labels them with a media type...