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StyleSmuggler: The Magento Zero-Day Behind New Store Attacks
Sansec reports actively exploited Magento/Adobe Commerce zero-day StyleSmuggler enabling unauthenticated RCE and Rust backdoor installation on fully patched stores since September 4.
Sansec discovered StyleSmuggler, an unpatched zero-day in Magento Open Source and Adobe Commerce, affecting all current versions including 2.4.7, 2.4.8 and 2.4.9, with attacks observed since September 4. The two-stage attack poisons Magento's template system via the styles property and executes the injected PHP during 'Payment Transaction Failed Reminder' email rendering, working even when email delivery fails and when sessions are moved to Redis. Successful compromise installs a lightweight Rust backdoor disguised as fc-cache or chronyd that beacons every 60 seconds with 48-byte UDP packets to NTP port 123 at ntp.timesync.to. A second attacker deployed a PHP web shell in product-image cache directories, hidden behind 404 responses unless a correct X-Cache-Token header is present.
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New Mirai Variant Targeting Network Security Devices
New Mirai botnet variant exploits nine vulnerabilities in SonicWall, D-Link, Netgear, and other devices, with attacks ongoing at publication.
Unit 42 observed attacks exploiting VisualDoor (SonicWall SSL-VPN), CVE-2020-25506 (D-Link DNS-320), CVE-2020-26919 (Netgear ProSAFE Plus), and other flaws, with infrastructure rotating across at least three IP addresses between February 16 and March 13, 2021. Payloads were updated hours after CVE-2021-27561 and CVE-2021-27562 (Yealink Device Management, unauthenticated root RCE) and later added CVE-2021-22502 (Micro Focus Operation Bridge Reporter) and CVE-2019-19356 (Netis WF2419). Successful exploitation invokes wget to fetch shell scripts that download Mirai binaries compiled for multiple architectures and brute-forcers, and attacks were still ongoing when reported.
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2026-002: Multiple Vulnerabilities in Cisco Products
Cisco fixed SD-WAN Controller auth bypass CVE-2026-20127 (CVSS 10) exploited in the wild since 2023, plus several critical and high flaws in SD-WAN Manager.
On 25 February 2026 Cisco released advisories for multiple flaws in Catalyst SD-WAN Controller and SD-WAN Manager, potentially granting administrative access to attackers. CVE-2026-20127 (CVSS 10.0) is an authentication bypass in the Controller's peering authentication mechanism, exploited in the wild since 2023, allowing unauthenticated admin access via NETCONF, rogue device injection, and persistent access. SD-WAN Manager flaws include CVE-2026-20129 (9.8, unauthenticated API auth bypass to netadmin), CVE-2026-20126 (7.8, local privesc to root), CVE-2026-20133 (7.5, info disclosure), CVE-2026-20122 (7.1, arbitrary file overwrite), and CVE-2026-20128 (5.5, DCA info disclosure). CERT-EU recommends patching, capturing forensic evidence, IOC hunting, and restricting management-plane internet exposure.
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Scans for Proxmox Servers, (Wed, Sep 9th)
SANS observed increased scanning and brute-force attacks on port 8006 targeting unsupported Proxmox VE 7 servers after a recent vulnerability advisory.
SANS Internet Storm Center reported a bump in scans for port 8006 and additional brute-force traffic against Proxmox VE servers following a Proxmox advisory about a vulnerability in older releases. The flaw only affects Proxmox VE version 7, which has been unsupported for a couple of years. Observed activity includes POST requests to /api2/json/access/ticket with root@pam usernames and weak passwords, fingerprinting requests, and POSTs to /api2/extjs/access/ticket; failed logins return 401 status codes and non-TLS POSTs return 308 redirects.
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StyleSmuggler: Magento and Adobe Commerce 0-day RCE (CVE-2026-75650) under active attack
Sansec details actively exploited StyleSmuggler 0-day (CVE-2026-75650, CVSS 10.0) unauthenticated RCE in Magento and Adobe Commerce, patched by Adobe hotfix APSB26-146.
Sansec is investigating StyleSmuggler, an actively exploited unauthenticated remote code execution chain in Magento Open Source and Adobe Commerce, now tracked as CVE-2026-75650 with CVSS 10.0. Adobe released hotfix VULN-39341 via APSB26-146 (priority 1) on September 7 for versions 2.4.4 through 2.4.9, but stores were being exploited for roughly three days before the fix existed. The implant is a Rust backdoor that disguises itself as kworker, fc-cache, or chronyd processes and exfiltrates host data in MessagePack records sent as fake NTP replies over UDP port 123. Adobe advises rotating the encryption key and every credential it protected, and Sansec stresses patching does not clean already-compromised stores.
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U.S. CISA adds TrueConf Server flaws to its Known Exploited Vulnerabilities catalog
CISA added two exploited TrueConf Server flaws (CVE-2026-72529, CVE-2026-72530) to its KEV catalog with federal patch deadlines.
CISA added two TrueConf Server vulnerabilities to its Known Exploited Vulnerabilities catalog: CVE-2026-72529 (CVSS 9.3), a missing-authentication remote code execution flaw reachable on TCP port 4307, and CVE-2026-72530 (CVSS 9.5), a sandbox escape allowing code execution on the underlying host. Both flaws affect TrueConf Server versions 5.3.x through 5.5.5 and earlier, and were discovered by Vyacheslav Kopeytsev of Kaspersky ICS CERT. Under BOD 22-01, federal civilian agencies must patch CVE-2026-72529 by August 23, 2026, and CVE-2026-72530 by September 2, 2026.
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NSA, CISA, FBI, DOE, and EPA Warn of Active AI
Five US agencies warn of active AI-assisted attacks on internet-exposed Siemens S7 PLCs across critical infrastructure, using disguised snap7 scripts for pre-positioning reconnaissance.
NSA, CISA, FBI, DOE, and EPA issued joint advisory CISA AA26-231A warning of an active hacking campaign against Siemens S7-series PLCs, from S7-200 through S7-1500 F-series, across US critical infrastructure. Threat actors use internet scanning services such as Censys and ZoomEye to locate exposed controllers, then perform read operations over S7comm on TCP port 102 using the legitimate snap7.dll and python-snap7 libraries, disguising AI-generated exploitation scripts as monitoring tools. The agencies assess the activity as pre-positioning ahead of possible process disruption, equipment damage, or safety incidents in Energy, Water, Critical Manufacturing, Chemical, Food and Agriculture, and Commercial Facilities sectors.
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Attackers exploit patched macOS Screen Sharing flaw to deploy cryptominer
Attackers actively exploit patched macOS Screen Sharing bug CVE-2026-65400 on systems with port 5900 exposed, gaining root to install a Monero cryptominer.
The Netherlands' National Cyber Security Centre (NCSC) reports active exploitation of CVE-2026-65400, an authentication flaw in macOS Screen Sharing that lets attackers authenticate without valid login credentials. Apple patched the issue in macOS Sequoia 15.7.9, Sonoma 14.8.9 and Tahoe 26.6.1, and the NCSC escalated its advisory on August 12 after proof-of-concept code went public and reports arrived of attacks on internet-exposed systems. In every reported case attackers obtained root access and installed a Monero crypto miner; users who cannot patch immediately are advised to disable Screen Sharing.
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Ivanti Warns of Critical Zero-Day Flaw Being Actively Exploited in Sentry Software
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