Tag: cross site scripting
15 articles
Russian Spies Expand Email Attacks to Outlook
Russian spies have set their sights on Microsoft Outlook Web Access, exploiting a cross-site scripting flaw to launch targeted email attacks, just days after being called out for their abuse of a zero-day vulnerability in Zimbra Collaboration Suite. The notorious group, tracked as TA488 or Laundry Bear, has adapted their sneaky half-click technique to compromise on-premises Exchange Servers.
Russian Hackers Exploit Microsoft OWA Flaw to Maintain Mailbox Access
Russian hackers have found a sneaky way to keep access to Microsoft mailboxes by exploiting a flaw in Outlook Web Access, making it tough to shake them off even with a full system overhaul. Simply put, these cyber intruders can stick around unless their presence is manually erased from the Exchange server.
Russian Hackers Exploit Exchange Zero-Day for Long-Term Mailbox Access
Russian hackers have unleashed a powerful tool, dubbed OWAReaper, exploiting a zero-day flaw in Exchange Outlook Web Access to gain long-term access to mailboxes, with Proofpoint hailing it as the most sophisticated backdoor delivered via half-click exploits they've ever seen. The attack, linked to the Russian state-sponsored group Laundry Bear, cleverly uses a cross-site scripting flaw to execute arbitrary JavaScript in victims' browsers.
Russia-Aligned TA488 Exploits Outlook Web Access With Persistent Implant
A Russia-aligned espionage group, known as TA488, has launched a sophisticated attack using a half-click backdoor, exploiting a flaw in Outlook Web Access to deploy a persistent implant. This new implant, dubbed OWAReaper, allows the group to maintain server-side access, marking a significant escalation in their cyber operations.
Kremlin Hackers Exploit Zimbra Bug to Infiltrate Networks
Kremlin hackers, also known as Laundry Bear, have been exploiting a vulnerability in the Zimbra Collaboration Suite to secretly infiltrate government and commercial networks for over a year, aiming to gather sensitive information for the Russian Federation. They've been using malicious emails to inject JavaScript code, allowing them to covertly acquire email data.
Russian Hackers Exploit Zimbra Flaw for Widespread Email Theft
Russian hackers have exploited a Zimbra flaw, CVE-2025-66376, to steal emails from targeted organizations, allowing them to automatically collect a victim's last 90 days of email without requiring any interaction. This alarming vulnerability was weaponized by the Russian state-sponsored group Laundry Bear using a combination of phishing and specially crafted HTML emails.
Adobe Acrobat Extension Flaw Exposes WhatsApp Web Data to Malicious Sites
A critical flaw in the Adobe Acrobat Chrome extension, affecting over 314 million users, could have allowed malicious websites to access your WhatsApp Web session - but thankfully, the vulnerability has been patched. The security issue, tracked as CVE-2026-48294, highlights the importance of keeping your browser extensions up to date.
Zimbra Fixes Command Injection Flaw, Four XSS Bugs
Zimbra has patched a critical command injection flaw and four cross-site scripting bugs in its latest update, ensuring users are protected from potential security threats. The fixes, part of version 10.1.20, address vulnerabilities that could allow malicious commands to be executed or sensitive data to be compromised.
Zimbra Warns of Stored XSS Flaw in Classic Web Client
Zimbra is urging customers to update their Classic Web Client immediately due to a critical vulnerability that could allow hackers to access sensitive mailbox information and execute malicious code via specially crafted emails. Installing the update, specifically upgrading to Zimbra Collaboration Suite version 10.1.19, will help protect against this threat.
Microsoft Fixes Zero-Day Flaw in Exchange Server Exploited in Attacks
Microsoft has patched a high-severity flaw in Exchange Server, known as CVE-2026-42897, which allowed hackers to execute malicious JavaScript in victims' browsers simply by sending a specially crafted email. This zero-day vulnerability was actively exploited in attacks, putting Outlook Web Access users at risk.
Security Researcher Exploits Flaw in Pretalx Conference Tool
A security researcher recently uncovered a vulnerability in pretalx, a popular conference tool, that could let hackers inject malicious code into an organizer's interface, putting sensitive data at risk. This flaw, known as a stored cross-site scripting vulnerability, could be triggered through simple search queries.
Microsoft Exchange Servers Targeted in Active Exploitation
Microsoft has sounded the alarm on a critical vulnerability in on-premise Exchange Servers, known as CVE-2026-42897, that's currently being exploited by hackers - and the company is urging affected users to act fast. A temporary fix is in place, with a permanent patch on the way.
Microsoft Warns of Severe Zero-Day Flaw in On-Prem Exchange Servers
Microsoft just sounded the alarm on a severe zero-day flaw in on-prem Exchange servers, warning that a high-severity vulnerability could let attackers send malicious code to victims via specially crafted emails. This flaw, tracked as CVE-2026-42897, has already been automatically mitigated if the EM Service is enabled, which it is by default.
Microsoft Exchange Servers Targeted by Active CVE-2026-42897 Exploit
Microsoft warns of a high-severity vulnerability, CVE-2026-42897, in its Exchange Servers, allowing attackers to spoof network communications via a cleverly crafted email. This cross-site scripting flaw has been actively exploited, earning a concerning CVSS score of 8.1.
Zimbra Servers Targeted in Ongoing XSS Attacks
Beware of sneaky phishing emails that can hijack your Zimbra server with just a glance - no clicks or downloads required. A single malicious email can trigger a cross-site scripting attack, thanks to a recently patched vulnerability, CVE-2025-48700.