Sep 28, 2026 · 8 min
Microsoft SharePoint flaw faces active exploitation
New SharePoint exploit, Australian OpenAI hack developments, Kiteworks urges stoppage
The vulnerability lets authenticated, low-privilege attackers execute arbitrary code without user interaction, and Microsoft has reliable evidence of attacks in the wild.
- 1Microsoft says attackers are actively exploiting a SharePoint code injection vulnerability patched in August 2026.
- 2The flaw enables authenticated, low-privilege attackers to execute arbitrary code without requiring user interaction.
- 3The episode points listeners to CISOseries.com for fuller coverage of the reported cybersecurity stories.
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The episode’s key moment is the warning that a low-privilege authenticated attacker can execute arbitrary code through the exploited SharePoint flaw.
The brief
Steve Prentice leads with the episode’s central warning: a Microsoft SharePoint code injection vulnerability patched in August 2026 is now under active exploitation.
The flaw is consequential because an authenticated, low-privilege attacker can execute arbitrary code without user interaction, lowering the barrier to compromise.
Microsoft reports reliable evidence of attacks in the wild, turning the SharePoint issue from a patching note into an active security concern.
The episode closes by pointing listeners to CISOseries.com for the full stories and noting that Cybersecurity Headlines is available every weekday.