SentryDigest

Citrix confirms two NetScaler RCE zero-days exploited in attacks

Citrix has confirmed that two critical NetScaler remote code execution vulnerabilities, tracked as CVE-2026-88771 and CVE-2026-88772, are being exploited in attacks and that it has released security updates to fix the flaws…

Cloudflare fixes Containers cross-tenant flaw exposing customer data

Cloudflare has fixed a vulnerability in Containers and Sandboxes that allowed customers with a Workers Paid account to recover residual data from other customers' containers on the same physical host…

Anthropic turns Claude into an AI marketplace with 2,000+ plugins and connectors

Anthropic has just announced a new Claude Marketplace, and it brings all AI-related tools into one place, including plugins, connectors, agents, and more…

Warning: Two Unpatched Citrix NetScaler RCE Zero-Days Under Active Exploitation

Two critical vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway that allow remote code execution have been exploited in the wild, Citrix confirmed on September 27. It released fixes for both, along with six other flaws. One of the two affects every deployment on an affected version, including those in the default configuration. The bulletin came a day after security firm watchTowr…

ShinyHunters uses WAF bypass trick in Oracle PeopleSoft attacks

The ShinyHunters extortion gang is using a URL-encoding trick to bypass web application firewall rules that mitigate the Oracle PeopleSoft CVE-2026-35273 flaw, allowing the threat actors to resume widespread exploitation of a flaw on vulnerable servers…

Lunex Stealer Abuses AMD Driver to Disable Security Monitoring and Steal Browser Credentials

The Psychedelic Stealer malware distributed via compromised Ukrainian websites using ClickFix-style Cloudflare verification checks is part of a wider malware-as-a-service (MaaS) platform called Lunex. The new findings come from Ontinue, which described the activity as a four-stage attack chain aimed at targeting Ukrainian-speaking users. "The attack chain begins with a fake CAPTCHA page and…

Claude Opus 5.5 uses 95% fewer em dashes, but its answers are getting longer

Anthropic's Claude Opus 5.5 appears to be changing how it writes, with new analysis showing fewer obvious AI writing patterns, shorter sentences, and simpler wording compared with Opus 5…

Microsoft pauses KB5002907 update after Office license deactivations

Microsoft has paused the rollout of the KB5002907 Microsoft 365 update after users report that it deactivated, or in some cases completely removed, perpetual Office 2016 and Office 2019 installations…

GitHub Actions re-enabled with Mini Shai-Hulud payload still active

Two third-party GitHub Actions previously compromised in a Mini Shai-Hulud campaign were re-enabled by their maintainer and remained accessible for more than a week despite still pointing to malicious code…

OpenAI's AI agents accidentally uploaded user-provided images to third-party sites

OpenAI says its AI agents uploaded user-provided images to third-party image-hosting services while carrying out research and evaluation tasks…

Attackers Bypass WAFs to Exploit Oracle PeopleSoft Flaw and Deploy Web Shells

Google is warning of renewed mass exploitation of a known security vulnerability in Oracle PeopleSoft as part of a campaign targeting multiple sectors globally. The ShinyHunters-linked activity involves the weaponization of CVE-2026-35273 (CVSS score: 9.8), a critical security flaw that could result in unauthenticated remote code execution. The vulnerability was first exploited as a zero-day…

Zero Trust for AI Agents Starts With Fixing Zero Visibility

The way we talk about AI agents is shifting, and the way we implement them requires an even more fundamental shift. While earlier discourse focused on how quickly organizations could stand up agents and how much productivity they could promise, a string of recent incidents, including a widely discussed intrusion at Hugging Face during an evaluation of OpenAI agents, has spurred organizations to…

Elementor CSRF Flaw Lets Attackers Take Over Sites After Admin Clicks Crafted Link

Details have emerged about a high-severity security flaw in the Elementor Website Builder WordPress plugin that could be exploited by an unauthenticated attacker to create rogue administrator accounts and take control of a site. The cross-site request forgery (CSRF) vulnerability, which has yet to be assigned a CVE identifier, carries a CVSS score of 8.8 out of 10.0. It only affects versions…

SharePoint RCE and MikroTik RouterOS Flaws Actively Exploited in the Wild

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added two security flaws impacting Microsoft SharePoint and Mikrotik RouterOS to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerabilities in question are as follows - CVE-2026-65660 (CVSS score: 8.8) - A code injection vulnerability in Microsoft Office SharePoint…

Kiteworks Urges Customers to Shut Down Systems for 9 Hours Over Possible Cyber Attack

Kiteworks (formerly Accellion) is urging customers to shut down their systems as a precautionary measure for nine hours over the weekend after it received threat intelligence about an imminent cyber attack. "Kiteworks received credible threat intelligence from federal intelligence authorities indicating that a threat actor may attempt to target some Kiteworks systems," said Frank Balonis, Chief…

U.S. Soldier Gets 70 Months in Prison for AT&T, Verizon Extortions

Kiteworks urges 6-hour server shutdown over potential zero-day attacks

Secure file-sharing software company Kiteworks is urging customers worldwide to temporarily shut down their servers on Saturday for a six-hour window after receiving threat intelligence warning of a potentially imminent cyberattack…

ShinyHunters hacked Clop leak site using Grav CMS path traversal flaw

The Clop ransomware gang has moved its data leak site to a new Tor address after confirming its previous server was compromised and defaced through an unpatched Grav CMS flaw that BleepingComputer has learned is an unauthenticated path traversal vulnerability…

How the CISO CFO Relationship is a Key to Cybersecurity Success

AI Sandbox Escapes: Why Forensic Readiness Matters More Than Containment

When autonomous AI agents "escape the sandbox," the real story isn't rogue machines — it's the same access-control failures we've seen for decades.

Elementor WordPress flaw lets attackers create admin accounts

A cross-site request forgery (CSRF) vulnerability in the Elementor plugin for WordPress could allow an unauthenticated attacker to create administrator accounts…

What We Missed: Google Gemini Joins the AI Escape Party

In this video conversation, Dark Reading editors discuss some of the news they didn't get a chance to cover, from Google Gemini models breaking containment to ShinyHunters ratting on TeamPCP hackers.

CISA warns of Sharepoint, WSO2, Adobe Commerce flaws exploited in attacks

The Cybersecurity and Infrastructure Security Agency (CISA) warns that hackers are exploiting a critical authentication bypass vulnerability (CVE-2026-5430) affecting multiple products from enterprise software provider WSO2…

Anthropic rolls out up to $250 in free Claude Code credits, but only for cloud sessions

Anthropic now allows you to run Claude Code via cloud sessions without signing up for the research preview, and it's offering up to $250 in free usage credits, so more users can give it a try…

OpenAI is preparing a $500 ChatGPT Pro Max plan with faster Codex

OpenAI appears to be preparing a new ChatGPT Pro Max subscription that could cost $500 per month, but it's unclear when it'll begin rolling out…

With the Rise of AI Agents, SOC 2 Should Adapt or Risk Irrelevance

AI agents can operate through human credentials and take actions that existing SOC 2 controls may not distinguish from human activity. Token Security explains why SOC 2 needs to adapt to address the security gaps created by agent identities…

Stopping IT Worker Scams Requires Revamped HR Process

Training human-resource managers in the latest tactics and warning signs goes a long way toward blunting the threat, but automated analysis can help even more.

Compromised GitHub Actions Came Back Online and Resumed Executing Mini Shai-Hulud Malware

Two actions-cool GitHub Actions have been disabled for a second time after the repositories became accessible last week, months after they were compromised during the May 2026 Mini Shai-Hulud campaign. The affected GitHub Actions are listed below - actions-cool/issues-helper actions-cool/maintain-one-comment Visiting either of the repositories now shows the message: "Access to this…

PamStealer macOS Malware Adds Live C2 Payload Decryption and Multi-Layer Persistence

Cybersecurity researchers have flagged a new version of PamStealer that ensures that the main payload can only be recovered using a server-side decryption chain. The latest artifacts, per Jamf Threat Labs, continue to rely on the same JavaScript for Automation (JXA) dropper mechanism, but modify the lure and the delivery method. "Where earlier variants embedded their payload key material…

Microsoft plans to deprecate Windows Deployment Services

Microsoft announced it will deprecate the Windows Deployment Services (WDS) server role starting with the next Windows Server release…

Rydox marketplace admin pleads guilty, faces 22 years in prison

A Kosovar national has pleaded guilty to operating Rydox, a large illegal online marketplace that sold stolen personal information, login credentials, credit card details, and cybercrime tools…

The SOC Doesn't Need to Start Over with Every Alert

Security leaders keep debating whether AI will produce an entirely new class of cyberattack. The nearer change is quieter and already visible: AI has made a failed attack cheap to retry. The routine version looks like this. An attacker lands on a low-privilege cloud account, and the first try at privilege escalation goes nowhere. That dead end used to cost hours of documentation reading…

Bitget Says Suspected North Korean Hackers Stole $351.6M After Backend Compromise

Cryptocurrency exchange Bitget said suspected North Korean threat actors have stolen $351.6 million from its hot and warm wallets. "At 18:31 UTC on September 24, 2026, Bitget's security systems identified unauthorized transfers involving a limited number of hot wallets," BitGet said in a post shared on X. "Bitget's cold wallets and the overwhelming majority of platform assets remain…

Microsoft: Recent Windows updates cause desktop loading issues

Microsoft has confirmed that some users may experience desktop loading issues, including black screens, after installing the August 2026 preview updates and subsequent updates…

Roundcube Pre-Auth SQL Injection Flaw Actively Exploited in the Wild

The Canadian Centre for Cyber Security has warned that a now-patched Roundcube Webmail vulnerability is being actively exploited in the wild. The vulnerability in question is CVE-2026-48842 (CVSS score: 8.1), a pre-authentication SQL injection in the virtuser_query plugin of Roundcube Webmail versions 1.6.x before 1.6.16 and 1.7.x before 1.7.1. The issue stems from a preg_replace() backslash…