Cross-site scripting
Ninja Forms plugin flaw exploited to hack WordPress sites
Hackers are exploiting stored cross-site scripting (XSS) vulnerabilities in two unrelated WordPress plugins, Ninja Forms and WPC Product Bundles for WooCommerce, to install backdoors and create rogue admin accounts. Both vulnerabilities received a high severity score and require an authenticated session to exploit. They are tracked as CVE-2026-93836, affecting WPC Product Bundles for WooCommerce versions 8.6.6 […]
Microsoft to block Entra ID script injection attacks starting October
Microsoft has reminded customers that the Entra ID identity and access management (IAM) solution will get better protection against external script injection attacks starting next month. The company first revealed plans to secure Entra ID sign-ins from script injection attacks in a November 2025 announcement. According to a Monday message center update seen by BleepingComputer, […]
Zimbra urges customers to patch critical web client XSS flaw
The Zimbra security team urged customers to patch a critical vulnerability affecting the Classic Web Client used to access the Zimbra Collaboration suite. Zimbra is a very popular email and collaboration software suite used by hundreds of millions of people, including thousands of businesses and hundreds of government agencies worldwide. Also known as the Classic […]
Hackers exploit Roundcube flaw to spy on academic researchers
A China-linked threat cluster has been exploiting vulnerable Roundcube servers at U.S. and Canadian universities to steal credentials and deploy backdoor malware. The campaign has been observed since May and focuses on physics and engineering departments, administrators and professors, as well as organizations involved in astrophysics, particle physics, or national security-related research. Researchers at cybersecurity company […]
Microsoft patches Exchange Server zero-day exploited in attacks
Microsoft has patched an actively exploited Exchange Server vulnerability that allows threat actors to execute arbitrary JavaScript code in cross-site scripting (XSS) attacks targeting Outlook Web Access users. This high-severity spoofing vulnerability (CVE-2026-42897) affects Exchange Server 2016, Exchange Server 2019, and Exchange Server Subscription Edition (SE) software and can be exploited by remote attackers with […]
Over 10,000 Zimbra servers vulnerable to ongoing XSS attacks
Over 10,000 Zimbra Collaboration Suite (ZCS) instances exposed online are vulnerable to ongoing attacks exploiting a cross-site scripting (XSS) security flaw, according to nonprofit security organization Shadowserver. Zimbra is a popular email and collaboration software suite used by hundreds of millions of people worldwide, including hundreds of government agencies and thousands of businesses. The vulnerability (tracked as CVE-2025-48700) […]
Russian hackers exploit Zimbra flaw in Ukrainian govt attacks
Hackers part of APT28, a state-backed threat group linked to Russia’s military intelligence service (GRU), are exploiting a Zimbra Collaboration Suite (ZCS) vulnerability in attacks targeting Ukrainian government entities. This high-severity security flaw (tracked as CVE-2025-66376 and patched in early November) stems from a stored cross-site scripting (XSS) that unauthenticated attackers can exploit to gain remote code execution (RCE) […]
CISA orders feds to patch Zimbra XSS flaw exploited in attacks
CISA has ordered U.S. government agencies to secure their servers against an actively exploited vulnerability in the Zimbra Collaboration Suite (ZCS). Zimbra is a very popular email and collaboration software suite used by hundreds of millions of people worldwide, including thousands of businesses and hundreds of government agencies. Tracked as CVE-2025-66376 and patched in early November, this high-severity security […]
Microsoft to secure Entra ID sign-ins from script injection attacks
Microsoft plans to enhance the security of the Entra ID authentication system against external script injection attacks starting in mid-to-late October 2026. This update will implement a strengthened Content Security Policy that allows script downloads only from Microsoft-trusted content delivery network domains and inline script execution only from Microsoft-trusted sources during sign-ins. After rollout, it […]
Romania’s election systems targeted in over 85,000 cyberattacks
A declassified report from Romania’s Intelligence Service says that the country’s election infrastructure was targeted by more than 85,000 cyberattacks. Threat actors also obtained access credentials for election-related websites and leaked them on a Russian hacker forum less than a week before the first presidential election round. Attacks originating from 33 countries The Romanian Intelligence […]