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Fencer Vulns
medium 4.3

CVE-2020-8119 json

Improper authorization in Nextcloud server 17.0.0 causes leaking of previews and files when a file-drop share link is opened via the galler…

published 2020-02-04 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-29029

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

Improper authorization in Nextcloud server 17.0.0 causes leaking of previews and files when a file-drop share link is opened via the gallery app.

Patch / fix

  • nextcloud nextcloud_server 15.0.13, 16.0.6, 17.0.1
  • nextcloud Package Hub 15 SP1 15.0.14-bp151.3.6.1
  • nextcloud Package Hub 15 SP1, Package Hub 15, Package Hub 12 +1 more 15.0.14-bp151.3.3.1

opensuse advisories openSUSE-SU-2020:0229-1openSUSE-SU-2020:0220-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-8119 updated

nextcloud: Several CVEs fixed in nextcloud 15, 16 and 17

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected products

  • n/a Nextcloud Server

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.