Cross-Site Scripting Vulnerability in Nextcloud Contacts by Nextcloud
CVE-2020-8280

5.4MEDIUM

Key Information:

Vendor

Nextcloud
Status
Nextcloud Contacts
Vendor
CVE Published:
6 January 2021

What is CVE-2020-8280?

A security issue in Nextcloud Contacts version 3.4.0 allows attackers to exploit a missing file type check. By uploading SVG files disguised as PNG files, malicious users can execute cross-site scripting (XSS) attacks, potentially compromising user data and web application integrity. This vulnerability highlights the importance of implementing strict file type validations in applications to safeguard against such security threats.

Affected Version(s)

Nextcloud Contacts Fixed in 3.4.1

References

https://hackerone.com/reports/998422
x_refsource_MISC
https://nextcloud.com/security/advisory/?id=NC-SA-2020-044
x_refsource_MISC

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.