6.5

CVE-2020-8293: nextcloud nextcloud_server Uncontrolled Resource Consumption

CVSS: 6.5v3.1MediumModified
Published 26-01-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-8293 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in nextcloud nextcloud_server. EPSS estimates a 1.56% chance of exploitation in the next 30 days, higher than 74.8% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.56%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2021:0262-1OPENSUSE-SU-2021:0274-1OPENSUSE-SU-2021:1068-1

Timeline

  1. 26-01-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.56%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

0.00 pp

From 1.56% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.56%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nextcloud1 product

1 vendor · 1 product

References

2 links