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CVE-2026-18655 - Broker Credential and OAuth Token Disclosure in AWS Labs Amazon MQ MCP Server via Prompt Injection

CVE-2026-18481 - Stored XSS in Participant URL Field leads to Account Takeover via Session Token Theft

Check Point Fixes a New Actively Exploited Critical Security Flaw

Check Point fixes an actively exploited flaw that lets unauthenticated attackers upload and run scripts on vulnerable Security Management Servers. Check Point has released emergency hotfixes for CVE-2026-93616, a critical path traversal flaw in its Security Management Server. Attackers can abuse the flaw without logging in to upload malicious scripts and execute them on vulnerable […]

ShinyHunters claims FBI hack, data theft in PeopleSoft zero-day breach

The ShinyHunters extortion gang claims it breached FBI systems using a new Oracle PeopleSoft zero-day vulnerability, gaining access to internal services and stealing sensitive data on employees and job applicants. [...]

The Truth about GET and HTTP Standards, (Tue, Sep 22nd)

On Friday, Xavier talked about the newly introduced HTTP Query method. This new method was introduced to allow "GET" requests that include a body. The main reason for this was that GET requests typically do not contain a body. But what if they do?

Check Point Warns of Management Server Zero-Day Exploited in Targeted Attacks

Attackers exploited a previously unknown flaw in Check Point's Security Management Server in a handful of targeted attacks on July 23, the company said. The flaw, CVE-2026-93616, allows an attacker who can access the server's web service to run scripts on it without logging in. Check Point released a fix on September 22 for the server that controls firewall policies for the Check Point

New ClosedQuorum Windows malware uses AI for attack decisions

A new Windows malware named ClosedQuorum uses Google Gemini, DeepSeek, Qwen, and Mistral AI models to autonomously determine the actions to take during post-compromise stages of an attack. [...]

WordPress Issues Patch for Critical Flaw That Can Enable Code Execution on Some Servers

WordPress has fixed a critical flaw in its core software that lets an attacker with no account make a site load a PHP file from outside its theme folders. On some servers, that can go further, allowing the attacker to run their own code. The fix shipped on September 22 in WordPress 7.1.2, with fixes for every branch the project still supports, back to 4.7, and WordPress is telling site owners

Malicious npm Package Poses as Twilio Bug-Bounty Probe, Can Exfiltrate Credentials

Cybersecurity researchers have disclosed details of a malicious npm package named "tw-pkgprobe-7731" that masquerades as a security tool targeting developers integrating Twilio into their applications, while stealthily attempting to harvest sensitive data. The package, named "tw-pkgprobe-7731," was first uploaded to the npm registry in mid-August 2026 by an npm account named "twdepprobe7731."

BigCommerce Data Stolen via Ribon Apps Hack

The attackers used a compromised BigCommerce application key held by Ribon to access customer data. The post BigCommerce Data Stolen via Ribon Apps Hack appeared first on SecurityWeek.

Reducing shadow IT visibility gaps with Wazuh

Shadow IT can leave security teams unaware of unmanaged endpoints, unauthorized software, and other assets that fall outside existing monitoring. Wazuh explains how endpoint inventory, agentless monitoring, and centralized analysis can help organizations identify and reduce these visibility gaps. [...]

Amid Ongoing Rogue Incidents, Debate Over AI Safety Gets Real

As more reports of misalignment incidents underscore AI risks, large AI labs, regular businesses, and even nations are searching for better ways to keep control and be secure.

CVE-2026-94384 - Missing Authorization in AmazonConnectSalesforceLambda sfExecuteAWSService

Bulletin ID: 2026-115-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 09/22/2026 10:00 AM PDT Description: Amazon Connect Salesforce Lambda (AmazonConnectSalesforceLambda) is a Serverless Application Repository application that provides Lambda functions for integrating Amazon Connect with Salesforce. We identified CVE-2026-94384, a missing authorization issue in the sfExecuteAWSService Lambda function, which is used only during initial setup. The function dispatche…

Microsoft Takes Down EvilTokens Device-Code Phishing Service Tied to 12,000 Inbox Compromises

Microsoft on Tuesday announced the takedown of the EvilTokens device code phishing service that it said used artificial intelligence (AI) "at every step of the attack chain." The action, carried out with authorization from the U.S. District Court for the Eastern District of Virginia, involved the efforts of Health-ISAC, alongside Cloudflare, Coinbase, OpenAI, Railway, SpyCloud, The Shadowserver

2026-013: Critical Vulnerability in F5 BIG-IP APM

On 22 September 2026, F5 published an advisory addressing a critical vulnerability affecting its BIG-IP APM product. The vendor confirmed active exploitation in the wild. CERT-EU recommends taking appropriate actions as soon as possible.

Critical Bifrost AI Gateway Flaw Lets Attackers Run Commands Without Credentials

A critical vulnerability in Bifrost, an open-source AI gateway that routes requests to more than 20 LLM providers, allows an unauthenticated attacker to run arbitrary commands on the gateway server with a single HTTP request. The flaw, tracked as CVE-2026-90898 (CVSS score: 9.8), affects all versions of the Bifrost HTTP transport before 2.1.0 when management authentication is

Sumit Dhawan | theCUBE + NYSE Wired - Proofpoint Protect 2026

Researcher Drops BigDiskBuster Zero-Day PoC That Blocks Microsoft Defender Updates

A zero-day proof-of-concept tool that stops Microsoft Defender from installing platform and signature updates by filling all available disk space was published on GitHub on September 19. The tool, called BigDiskBuster, has no patch, no CVE, and no Microsoft advisory. Its author, Abdelhamid Naceri, is a former Microsoft security researcher whose earlier Defender exploits were used in

Fighting AI Slop in Production Codebases: How Huntress Improved Fable 5.1’s API Recall

Three changes to the Huntress coding harnesses doubled Claude Fable 5.1’s API recall evaluation accuracy rate.

Two arrested in UK after Microsoft takedown of ‘Eviltokens’ AI-chatbot for cybercriminals

Available on Telegram for a $1,500 initiation fee and a recurring monthly $500 subscription, EvilTokens provided cybercriminals with artificial intelligence tools enabling them to compromise accounts, analyze breached inboxes and find the best methods for monetizing their access through fraud.

Unmasking EvilTokens: Getting to the root of device code phishing

EvilTokens has quickly become one of the top PhaaS platforms, enabling device code phishing attacks through AI-assisted lures, automated infrastructure, and token theft. In collaboration with partners, Microsoft Digital Crimes Unit (DCU) facilitated a disruption of EvilTokens infrastructure and operations. The post Unmasking EvilTokens: Getting to the root of device code phishing appeared first on Microsoft Security Blog.

EvilTokens PhaaS disrupted after compromising 12,000 Microsoft accounts

The EvilTokens platform that compromised more than 12,000 Microsoft accounts at over 10,000 organizations has been disrupted in an effort led by Microsoft's Digital Crimes Unit (DCU). [...]

Cyera Raises $400 Million at $12+ Billion Valuation

The data security company received the new investment from Goldman Sachs Alternatives, extending its Series G funding round. The post Cyera Raises $400 Million at $12+ Billion Valuation appeared first on SecurityWeek.

Chaotic Eclipse Released BigDiskBuster, A PoC For Windows Defender Update DoS Zero-Day

The researcher Chaotic Eclipse released BigDiskBuster, a PoC exploit for a Windows Defender Update DoS Zero-Day vulnerability. Security researcher Chaotic Eclipse, also known as INFINITE NIGHTMARE, MSNightmare and Nightmare-Eclipse, released a new zero-day exploit targeting Microsoft Defender. The researcher named the exploit BigDiskBuster, it triggers a Denial of Service Vulnerability in Windows Defender Update. The security researcher […]

AI Attacks Move Faster. Huntress’ Agentic SOC Keeps Up

AI hasn't changed attacker tradecraft, just the speed. See how Huntress built Athena, an agentic SOC partner, to help analysts keep pace.

Nightmare Eclipse Drops New Microsoft Defender Exploit After Revealing Identity

Abdelhamid Naceri, a former Microsoft Germany employee, is the exploit leaker Nightmare Eclipse, aka Chaotic Eclipse. The post Nightmare Eclipse Drops New Microsoft Defender Exploit After Revealing Identity appeared first on SecurityWeek.

LausivLoader analysis, or how to pass data between malware stages, (Thu, Sep 17th)

At the end of August, a malspam message was caught in the quarantine of a mail gateway operated by one of my customers. The message was not especially remarkable – it asked the recipient to review some attached requirements and provide a price quotation for a fiber optic system and appeared to impersonate an employee of a legitimate company.

AI is set to help cyber attackers much more than defenders, says UK official

Dave Chismon, the NCSC’s chief technology officer for architecture, said in a blog post that the imbalance in AI means cyberattacks would likely grow as automated defenses struggle to keep pace.

Russia's internet shutdowns disrupt warnings about incoming drone attacks

Russia’s growing restrictions on mobile internet and cellular service are making it harder for people to receive warnings about incoming Ukrainian drone and missile attacks.