CVE-2020-8293
MEDIUM
6.5
CVSS Score
Published: January 26, 2021 at 04:33 PM UTC
Updated: June 17, 2026 at 03:26 AM UTC
1 product affected across 1 vendorNextcloud/server
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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%
Description
A missing input validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows users to store unlimited data in workflow rules causing load and potential DDoS on later interactions and usage with those rules.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Nextcloud/server· Nextcloudnextcloud-app
95%v < 18.0.1119.0.0 ≤ v < 19.0.520.0.0 ≤ v < 20.0.2
Affected range stops below 18.0.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.0.5, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 20.0.2 (unaffected)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCBroken LinkVendor Advisory
Source: [email protected]
https://nextcloud.com/security/advisory/?id=NC-SA-2021-001CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-400
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