ThreatsDay Bulletin: OAuth Trap, EDR Killer, Signal Phishing, Zombie ZIP, AI Platform Hack & More

Another Thursday, another pile of weird security stuff that somehow happened in just seven days. Some of it is clever. Some of it is lazy. A few bits fall into that uncomfortable category of “yeah… this is probably going to show up in real incidents sooner than we’d like.” The pattern this week...

Vulnerability fixed in Microsoft Authenticator app

Microsoft has fixed a vulnerability in the Authenticator app for Android and iOS. A malicious party could exploit the vulnerability to gain access to sensitive data. Successful abuse requires the malicious party to trick the victim into installing a rogue app. This app can then be misused to...

Missing Authentication For Critical Function

Apache ActiveMQ Artemis is vulnerable to Missing Authentication for Critical Function. The vulnerability is due to missing authentication checks in the Core protocol federation mechanism, allowing an unauthenticated attacker to force the broker to establish an outbound connection to a rogue broke...

Apache Artemis 2.11.0 < 2.45.0 / 2.50.0 < 2.52.0 Missing Authentication (CVE-2026-27446)

The version of Apache Artemis formerly Apache ActiveMQ Artemis installed on the remote host is affected by a vulnerability: - Missing Authentication for Critical Function vulnerability. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound...

CVE-2026-2994

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via groupid parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team gave this vulnerabilit...

EUVD-2026-9414

A vulnerability has been identified in a standardized wireless roaming protocol that could enable a malicious actor to install an attacker-controlled Group Temporal Key GTK on a client device. Successful exploitation of this vulnerability could allow a remote malicious actor to perform unauthoriz...

GHSA-FW88-PF9M-P947 Apache Artemis and Apache ActiveMQ Artemis are Missing Authentication for Critical Functions

Missing Authentication for Critical Function CWE-306 vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. This cou...

EUVD-2026-9382

Missing Authentication for Critical Function CWE-306 vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. This cou...

CVE-2026-27446

Missing Authentication for Critical Function CWE-306 vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. This cou...

CVE-2026-27446 Apache Artemis, Apache ActiveMQ Artemis: Auth bypass for Core downstream federation

Missing Authentication for Critical Function CWE-306 vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. This cou...

CVE-2026-27446 Apache Artemis, Apache ActiveMQ Artemis: Auth bypass for Core downstream federation

Missing Authentication for Critical Function CWE-306 vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. This cou...

GHSA-W9QG-CHFH-G3Q9 Concrete CMS has a stored Cross-site Scripting (XSS) vulnerability

In Concrete CMS below version 9.4.8, a rogue administrator can add stored XSS via the Switch Language block. The Concrete CMS security team gave thanks M3dium for reporting...

EUVD-2026-9360

In Concrete CMS below version 9.4.8, a rogue administrator can add stored XSS via the Switch Language block. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks M3dium for reporting...

EUVD-2026-9357

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via groupid parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team gave this vulnerabilit...

Concrete CMS vulnerable to Cross-Site Request Forgery (CSRF)

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via groupid parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team thanks z3rco for...

GHSA-6MXW-2VHF-42G5 Concrete CMS vulnerable to Cross-Site Request Forgery (CSRF)

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via groupid parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team thanks z3rco for...

CVE-2026-2994

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via groupid parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team gave this vulnerabilit...

CVE-2026-2994

Concrete CMS versions prior to 9.4.8 are vulnerable to CSRF via the Anti-Spam Allowlist Group Configuration (group_id parameter). The root cause is that changes are saved before CSRF token validation, enabling a Rogue Administrator to bypass CSRF protections. Affected software: Concrete CMS

CVE-2026-2994 Concrete CMS below 9.4.8 is vulnerable to CSRF by a Rogue Admin using the Anti-Spam Allowlist Group

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via groupid parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team gave this vulnerabilit...

CVE-2026-2994

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via groupid parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team gave this vulnerabilit...