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Over 1,300 Microsoft SharePoint servers vulnerable to spoofing attacks

BACKGROUND
1 SIGNALFIRST DETECTED 22 April 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
Other feeds and industry voices
14 Aug
SharePoint CVE‑2026‑55040: JWT Bypass Exploited Worldwide – Patch Now

<h2> Threat Overview </h2> <p>🚨 Microsoft SharePoint now has a critical flaw, CVE-2026-55040, that has already started being exploited in the wild.<br /> ⚠️ The vulnerability

REPORT · HOW · Dev.toOPEN STORY
1 Oct
CVE-2026-65660: a SharePoint flaw that never writes a file to disk

<h1> CVE-2026-65660: a SharePoint flaw that never writes a file to disk </h1> <p>Most incident response playbooks for a web server compromise start with the file system. Analysts

REPORT · WHAT · Dev.toOPEN STORY
6 Oct
CVE-2026-65660: a SharePoint code injection reachable with an ordinary user account

<h1> CVE-2026-65660: a SharePoint code injection reachable with an ordinary user account </h1> <p>SharePoint is rarely treated as a perimeter system, which is why a flaw in it

REPORT · WHAT · Dev.toOPEN STORY
13 Aug
Attackers Exploit SharePoint Authentication Bypass After Public PoC Release

Threat actors have begun to exploit a newly disclosed Microsoft SharePoint vulnerability following the release of a proof-of-concept (PoC) code. The vulnerability in question is

REPORT · HOW · The Hacker NewsOPEN STORY
1 Sept
Nearly 22,000 Microsoft Exchange servers vulnerable to hijack attacks

Nearly 22,000 Microsoft Exchange servers exposed online remain unpatched against a high-severity authentication bypass vulnerability that allows attackers to hijack all user

REPORT · WHAT · BleepingComputerOPEN STORY
12 Aug
Hackers leverage new Microsoft SharePoint exploit in attacks

Hackers have already begun using a proof-of-concept (PoC) exploit for a critical Microsoft SharePoint vulnerability, published by cybersecurity company Rapid7 on Tuesday. [...]

REPORT · HOW · BleepingComputerOPEN STORY
15 Apr
Microsoft Issues Patches for SharePoint Zero-Day and 168 Other New Vulnerabilities

Microsoft on Tuesday released updates to address a&nbsp;record 169 security&nbsp;flaws across its product portfolio, including one vulnerability that&nbsp;has been

REPORT · WHAT · The Hacker NewsOPEN STORY
9 Sept
Over 36,000 exposed Plex servers vulnerable to recent flaws

Over 36,000 Plex Media servers exposed online remain unpatched against multiple security vulnerabilities and are vulnerable to attacks. [...]

REPORT · WHAT · BleepingComputerOPEN STORY
Sources
BleepingComputer

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