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Attackers are actively exploiting CVE-2026-88771, a critical (CVSS v4.0 9.5) unauthenticated remote code execution flaw in Citrix NetScaler ADC and Gateway. The bug is an improper input-validation issue that needs no optional features enabled. Citrix disclosed it on September 27, 2026, and CISA added it to the Known Exploited Vulnerabilit…
Group-IB research describes a widespread campaign by an operator tracked as k0t that targets FortiGate, FortiWeb and Palo Alto GlobalProtect appliances to steal credentials, persist and exfiltrate corporate data. More than 70,000 exposed credentials were identified across network-device records, LDAP dumps and other artifacts. Many FortiG…
Horizon3.ai has released a public proof-of-concept exploit for CVE-2026-106173, a critical flaw in Fortinet FortiSIEM that lets unauthenticated attackers turn an arbitrary file write into remote code execution. Researcher Zach Hanley published the technical analysis on October 20, following Fortinet's advisory FG-IR-26-180 of October 13. …
SOCRadar's Threat Research Unit (STRU) found open directories on 45.227.254.43 in late September 2026. They led to six more adversary servers tied to INC Ransom and The Gentlemen affiliates. The servers held 8,257 AI messages across 133 sessions, source code, stolen credentials, victim workspaces and 46 victim-specific INC encryptor build…
Researchers describe WP2Shell, a chain of two WordPress core flaws, CVE-2026-63030 and CVE-2026-60137, that lets unauthenticated attackers progress from public REST API endpoints to remote code execution. It affects default installations with no third-party plugin required. Public exploit code exists and exploitation attempts have been ob…
The paid WordPress SEO plugin Rank Math PRO was hit by a supply chain attack. Copies of version 3.0.123 downloaded from the vendor's site or delivered as updates between October 15, 2026 20:02 UTC and October 16, 2026 07:12 UTC contained malware (securityweek.com, thehackernews.com, bleepingcomputer.com). Any site that installed and activ…
Microsoft Threat Intelligence reports active exploitation of CVE-2026-73570, a command injection flaw in Zimbra Collaboration Suite that allows unauthenticated, zero-click compromise of internet-facing email servers. Attackers deployed webshells, escalated privileges, harvested authentication secrets and staged mailbox data across organiz…
Drupal published an advisory on October 14, 2026 for CVE-2026-108097, a critical remote code execution vulnerability in the Field UI module (fieldui) of Drupal core. The advisory gives it a risk score of 19/25, with basic attack complexity, no authentication required, and full confidentiality and integrity impact. Drupal core alone is not…
Cisco disclosed a critical vulnerability, CVE-2026-76466 (CVSS v3.1 9.8), in the database service of Cisco Expressway Series (Expressway-C and Expressway-E). An unauthenticated remote attacker with network access and the relevant cookies could execute arbitrary operating system commands as root. The flaw stems from the use of persistent c…
