ChainDrop supply chain compromise: Anatomy of a self-propagating worm

In this article 1. Attack chain overview 2. Mitigation and protection guidance 3. Indicators of compromise IOC 4. Microsoft Defender XDR detections 5. Advanced hunting queries 6. Learn more Microsoft Threat Intelligence identified a large-scale npm supply chain attack affecting more than 400...

CVE-2026-52370

A reflected cross-site scripting XSS vulnerability in the Forum posting function of O2OA v10 allows attackers to execute arbitrary Javascript in the context of the victim's browser via a crafted URL...

EUVD-2026-39019

XSS in Ghost's ActivityPub client...

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-2026-65986

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...

EUVD-2026-52869

SNOMED International Snowstorm contains a reflected XSS vulnerability within the "Web Route" redirection functionality. An attacker can inject arbitrary JavaScript which will execute upon a target user navigating to a crafted, malicious link. Fixed in 10.12.2 and 10.9.3...

CVE-2026-66300

SNOMED International Snowstorm contains a reflected XSS vulnerability within the "Web Route" redirection functionality. An attacker can inject arbitrary JavaScript which will execute upon a target user navigating to a crafted, malicious link. Fixed in 10.12.2 and 10.9.3...

CVE-2026-66300 SNOMED International Snowstorm reflected XSS

SNOMED International Snowstorm contains a reflected XSS vulnerability within the "Web Route" redirection functionality. An attacker can inject arbitrary JavaScript which will execute upon a target user navigating to a crafted, malicious link. Fixed in 10.12.2 and 10.9.3...

CVE-2026-66300

SNOMED International Snowstorm has a reflected XSS vulnerability in the Web Route redirection feature. An attacker can inject arbitrary JavaScript that executes when a user visits a crafted link. Affected software/version details are not enumerated in this summary beyond Snowstorm; the vulnerabil...

Duplicate Advisory: @a2ui/web_core: `openUrl` permits `javascript:` URI execution via agent-supplied button actions

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-72qq-p3r5-f7wq. This link is maintained to preserve external references. Original Description The openUrl function in @a2ui/webcore passes an agent-controlled URL directly to window.open without validating the U...

GHSA-W72Q-X6W3-7RJ3 Duplicate Advisory: @a2ui/web_core: `openUrl` permits `javascript:` URI execution via agent-supplied button actions

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-72qq-p3r5-f7wq. This link is maintained to preserve external references. Original Description The openUrl function in @a2ui/webcore passes an agent-controlled URL directly to window.open without validating the U...

Incorrect Authorization

Overview flowise is a Flowiseai Server Affected versions of this package are vulnerable to Incorrect Authorization injection of $vars into the custom JavaScript execution context without proper authorization checks. An attacker can access sensitive workspace variables, including secrets from...

Flowise: Pyodide validator Unicode homoglyph bypass leads to RCE

Summary The validatePythonCodeForDataFrame blacklist in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbitrary Python execution inside Pyodide and full OS command execution on the Flowise host via Pyodide's js module interop. This...

CVE-2026-10032

The openUrl function in @a2ui/webcore passes an agent-controlled URL directly to window.open without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component's functionCall action. When the user clicks the rendered button, arbitrary...

Malicious code in @nebula.js/sn-listbox (npm)

npm/@nebula.js/sn-listbox is affected by the large-scale, self-propagating npm supply-chain worm of 2026-08-04 the "Shai-Hulud: Here We Go Again" wave — the same campaign that began with the compromise of the keyv and cacheable maintainer account. The listed versions were trojanized and republish...

CVE-2026-10032

The openUrl function in @a2ui/webcore passes an agent-controlled URL directly to window.open without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component's functionCall action. When the user clicks the rendered button, arbitrary...

CVE-2026-10032

The openUrl function in @a2ui/webcore passes an agent-controlled URL directly to window.open without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component's functionCall action. When the user clicks the rendered button, arbitrary...

CVE-2026-10032 Arbitrary JavaScript Execution via openUrl in @a2ui/web_core

The openUrl function in @a2ui/webcore passes an agent-controlled URL directly to window.open without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component's functionCall action. When the user clicks the rendered button, arbitrary...

CVE-2026-10032

The CVE-2026-10032 issue involves the openUrl function in @a2ui/web_core, which passes an agent-controlled URL directly to window.open() without URI scheme validation. A malicious actor can supply a javascript: URI as the url argument for a Button component’s functionCall action, allowing arbitra...

CVE-2026-10032 Arbitrary JavaScript Execution via openUrl in @a2ui/web_core

The openUrl function in @a2ui/webcore passes an agent-controlled URL directly to window.open without validating the URI scheme. A malicious agent can supply a javascript: URI as the url argument of a Button component's functionCall action. When the user clicks the rendered button, arbitrary...