Apr 22, 2026mediumzero-dayexploited in the wild

Over 1,300 Microsoft SharePoint servers vulnerable to spoofing attacks

Over 1,300 Microsoft SharePoint servers exposed online remain unpatched against a spoofing vulnerability that was exploited as a zero-day and is still being abused in ongoing attacks.

what's affectedOver 1,300 Microsoft SharePoint servers vulnerable to spoofing attacks

mitigation statusMonitoring updates

first reportedApr 22, 2026

social pulse

mentions (24h)573

velocitytrend flat

mentions delta+6% vs yesterday

platform splitX 68% · Reddit 34% · GitHub 8%

keywords

zero-dayzero-dayvulnerability

x analyticsheat 0

authors 0verified 0%

likes0

retweets0

replies0

quotes0

summaryDiscussion is steady around exposure checks and mitigation updates.

sources

https://www.bleepingcomputer.com/news/security/over-1-300-microsoft-sharepoint-servers-vulnerable-to-ongoing-attacks/

Curated Apr 22, 2026 by the ahackaday team./Sources verified./Brief grounded in 1 source.

Grace Your AI security internreadyGrace is ready

Grounded in this brief only — Over 1,300 Microsoft SharePoint servers vulnerable to spoofing attacks. Press ⌘K any time.

You're answering aschange anytime

Pick a playor type your own ↓

Tone

Pick a play above, or type your question

Generate an answer and Grace will return a grounded response for this incident.

scanning advisory feeds…