PT-2020-20013 · Nextcloud+1 · Nextcloud Desktop Client+1

Jplopezy + 1 · Published 2020-08-21 · Updated 2022-09-27 · CVE-2020-8189

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Desktop client version 2.6.4

Description A cross-site scripting error in the Nextcloud Desktop client allowed an attacker to present any HTML, including local links, when responding with invalid data on a login attempt.

Recommendations For Nextcloud Desktop client version 2.6.4, update to a newer version that contains a fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2020-2776

CVE-2020-8189

Affected Products

Alt Linux

Nextcloud Desktop Client

References · 11

• 🔥 https://hackerone.com/reports/685552 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-8189 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-8189 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-8189 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-8189 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-8189 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-8189 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-8189 · Vendor Advisory
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-027 · Vendor Advisory
• https://security.gentoo.org/glsa/202009-09 · Vendor Advisory
• https://t.me/cvenotify/36865 · Telegram Post