SharePoint | Breaking Cybersecurity News | The Hacker News

Cybersecurity researchers have disclosed details of a now-patched vulnerability impacting the Microsoft SharePoint connector on Power Platform that, if successfully exploited, could allow threat actors to harvest a user's credentials and stage follow-on attacks. This could manifest in the form of post-exploitation actions that allow the attacker to send requests to the SharePoint API on behalf of the impersonated user, enabling unauthorized access to sensitive data, Zenity Labs said in a report shared with The Hacker News ahead of publication. "This vulnerability can be exploited across Power Automate, Power Apps, Copilot Studio, and Copilot 365, which significantly broadens the scope of potential damage," senior security researcher Dmitry Lozovoy said . "It increases the likelihood of a successful attack, allowing hackers to target multiple interconnected services within the Power Platform ecosystem." Following responsible disclosure in September 2024, ...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  added  a security flaw impacting Microsoft Sharepoint Server to its Known Exploited Vulnerabilities ( KEV ) catalog based on evidence of active exploitation in the wild. The vulnerability, tracked as CVE-2023-24955 (CVSS score: 7.2), is a critical remote code execution flaw that allows an authenticated attacker with Site Owner privileges to execute arbitrary code. "In a network-based attack, an authenticated attacker as a Site Owner could execute code remotely on the SharePoint Server," Microsoft  said  in an advisory. The flaw was addressed by Microsoft as part of its  Patch Tuesday updates  for May 2023. The development comes more than two months after CISA  added  CVE-2023-29357, a privilege escalation flaw in SharePoint Server, to its KEV catalog. It's worth pointing out that an exploit chain combining CVE-2023-29357 and CVE-2023-24955 was demonstrated by StarLabs SG a...

Everybody knows browser extensions are embedded into nearly every user's daily workflow, from spell checkers to GenAI tools. What most IT and security people don't know is that browser extensions' excessive permissions are a growing risk to organizations. LayerX today announced the release of the Enterprise Browser Extension Security Report 2025 , This report is the first and only report to merge public extension marketplace statistics with real-world enterprise usage telemetry. By doing so, it sheds light on one of the most underestimated threat surfaces in modern cybersecurity: browser extensions. The report reveals several findings that IT and security leaders will find interesting, as they build their plans for H2 2025. This includes information and analysis on how many extensions have risky permissions, which kinds of permissions are given, if extension developers are to be trusted, and more. Below, we bring key statistics from the report. Highlights from the Enterprise Browse...