SecurityUnverified

Hackers Backdoor Nextcloud Servers Through Critical Flaw in Collabora’s Built-in CODE App

Attackers exploited a flaw in an optional Nextcloud app, Collabora Online - Built-in CODE Server, to plant web shells on Nextcloud servers. Three administrators reported the issue on GitHub, with the first logged attack on September 10. A web shell is a small file that executes any command an attacker sends via a web request, with the rights of the web server account. The flaw

What happened

Attackers exploited a flaw in an optional Nextcloud app, Collabora Online - Built-in CODE Server, to plant web shells on Nextcloud servers. Three administrators reported the issue on GitHub, with the first logged attack on September 10. A web shell is a small file that executes any command an attacker sends via a web request, with the rights of the web server account. The flaw

Why it matters

The incident may affect operational continuity, asset safety or trust around Security. Watch for verified scope and remediation.

Affected entities

View evidence

1 reports · 1 original report · 1 independent

  1. The Hacker NewsPrimary source · Supports · EN · 100%
    Hackers Backdoor Nextcloud Servers Through Critical Flaw in Collabora’s Built-in CODE App ↗

Claims

  • Hackers Backdoor Nextcloud Servers Through Critical Flaw in Collabora’s Built-in CODE App Observed

Conflicts

No material conflict detected in the available evidence.

Timeline

  1. First reported

Market move following event

Market reaction is not yet available for this asset and time window.

Score explanation

Confidence · formula confidence-2.1.0
Source trust80
Independent corroboration51
Primary evidence35
Claim consistency82
Extraction confidence82
Attribution quality90
Impact · formula impact-2.1.0
Event magnitude100
Market relevance74
Entity significance42
Market breadth45
Novelty68
Urgency100
Ranking · formula rank-1.0.0
Confidence factor0.8425
Freshness factor0.9826
Breaking bonus8