PT-2020-20006 · Nextcloud · Nextcloud Contacts

Published 2020-07-10 · Updated 2020-07-17 · CVE-2020-8181

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Contacts version 3.2.0

Description A missing file type check allowed a malicious user to upload any file as avatars.

Recommendations For Nextcloud Contacts version 3.2.0, update to a version that includes a file type check to prevent malicious file uploads.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

CWE-840

Related Identifiers

CVE-2020-8181

Affected Products

Nextcloud Contacts

References · 6

• 🔥 https://hackerone.com/reports/808287, · Exploit
• https://osv.dev/vulnerability/CVE-2020-8181 · Vendor Advisory
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-024 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8181 · Security Note
• https://t.me/cvenotify/4965 · Telegram Post
• https://hackerone.com/reports/808287%2C · Note