CVE-2020-8278

Name: CVE-2020-8278
Creator: NVD / NIST
Published: 2020-11-19T01:15:12.873+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.00%

Last modified Jun 17, 2026

CVE-2020-8278 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Improper access control in Nextcloud Social app version 0.3.1 allowed to read posts of any user.. EPSS estimates a 1.00% chance of exploitation in the next 30 days.

Description

Improper access control in Nextcloud Social app version 0.3.1 allowed to read posts of any user.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.00%

58.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Social	0.3.1

References

https://hackerone.com/reports/921717Exploit, Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-042Broken Link, Product
https://hackerone.com/reports/921717Exploit, Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-042Broken Link, Product

Timeline

Published: Nov 19, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8278?

Improper access control in Nextcloud Social app version 0.3.1 allowed to read posts of any user.

How severe is CVE-2020-8278?

CVE-2020-8278 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.00% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8278?

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-2020-8278?

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

Scan your code now

Source: NVD / NIST