CVE-2020-8280

Public Exploit

Description

A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting (XSS) attacks.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.22%
Vendor Advisory nextcloud.com
Affected: n/a Nextcloud Contacts
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/998422 third party advisory exploit
https://nextcloud.com/security/advisory/?id=NC-SA-2020-044 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-8280?
CVE-2020-8280 has been scored as a medium severity vulnerability.
How to fix CVE-2020-8280?
To fix CVE-2020-8280, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-8280 being actively exploited in the wild?
It is possible that CVE-2020-8280 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-8280?
CVE-2020-8280 affects n/a Nextcloud Contacts.
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