What is CVE-2018-3781?

CVE-2018-3781 is a medium-severity vulnerability in Nextcloud Nextcloud/talk, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-08-13.

How severe is CVE-2018-3781?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Nextcloud Nextcloud/talk

CVE-2018-3781

A missing sanitization of search results for an autocomplete field in NextCloud Talk <3.2.5 could lead to a stored XSS requiring user-interaction. The missing sanitization only affected user names, hence malicious search results could only…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (45.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Nextcloud Nextcloud/talk — versions >=3.2.5
Nextcloud Talk

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

support@hackerone.com (Third Party Advisory, x_refsource_MISC)
support@hackerone.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-3781?: CVE-2018-3781 is a medium-severity vulnerability in Nextcloud Nextcloud/talk, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-08-13.
How severe is CVE-2018-3781?: Medium severity. CVSS v3 base score is 5.4 out of 10.