CVE-2020-8118

Name: CVE-2020-8118
Creator: NVD / NIST
Published: 2020-02-04T20:15:13.73+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5/10EPSS 1.29%

Last modified Jun 17, 2026

CVE-2020-8118 is a medium-severity vulnerability rated 5/10 on the CVSS scale. An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application.. EPSS estimates a 1.29% chance of exploitation in the next 30 days.

Description

An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application.

Metrics

CVSS 3.1

5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

EPSS Probability

1.29%

66.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Nextcloud	Nextcloud Server	< 15.0.9	—
Nextcloud	Nextcloud Server	>= 16.0.0, < 16.0.2	—
Opensuse	Backports Sle	15.0	Sp1
Novell	Suse Linux Enterprise Server	12.0	—

References

http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.htmlRelease Notes, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.htmlRelease Notes, Third Party Advisory
https://hackerone.com/reports/427835Exploit, Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2019-014Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.htmlRelease Notes, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.htmlRelease Notes, Third Party Advisory
https://hackerone.com/reports/427835Exploit, Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2019-014Vendor Advisory

Timeline

Published: Feb 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8118?

An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application.

How severe is CVE-2020-8118?

CVE-2020-8118 has a CVSS score of 5/10 (MEDIUM severity). The EPSS model estimates a 1.29% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8118?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8118?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST