6.5

CVE-2020-8139: fedoraproject fedora Improper Access Control

CVSS: 6.5v3.1MediumModified
Published 20-03-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-8139 is a medium (CVSS 6.5) Improper Access Control vulnerability in fedoraproject fedora. EPSS estimates a 1.54% chance of exploitation in the next 30 days, higher than 74.4% 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
1.54%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-03-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A missing access control check in Nextcloud Server < 18.0.1, < 17.0.4, and < 16.0.9 causes hide-download shares to be downloadable when appending /download to the URL.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.54%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

0.00 pp

From 1.54% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.54%

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

Fedoraproject1 product
Nextcloud1 product
  • nextcloud_server≥ 16.0.0, < 16.0.9 | ≥ 17.0.0, < 17.0.4 | ≥ 18.0.0, < 18.0.1

2 vendors · 2 products

References

3 links