CVE-2018-3780

Name: CVE-2018-3780
Creator: NVD / NIST
Published: 2018-08-13T19:29:00.967+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.77%

Last modified Jun 17, 2026

CVE-2018-3780 is a vulnerability of currently unknown severity. A missing sanitization of search results for an autocomplete field in NextCloud Server <13.0.5 could lead to a stored XSS requiring user-interaction. The missing sanitization only affected user names, hence malicious search results could only be crafted by authenticated users.. EPSS estimates a 0.77% chance of exploitation in the next 30 days.

Description

A missing sanitization of search results for an autocomplete field in NextCloud Server <13.0.5 could lead to a stored XSS requiring user-interaction. The missing sanitization only affected user names, hence malicious search results could only be crafted by authenticated users.

Metrics

EPSS Probability

0.77%

50.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Nextcloud Server	< 13.0.5

References

https://hackerone.com/reports/383117Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2018-008Vendor Advisory
https://hackerone.com/reports/383117Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2018-008Vendor Advisory

Timeline

Published: Aug 13, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-3780?

How severe is CVE-2018-3780?

Severity scoring for CVE-2018-3780 is pending analysis. The EPSS model estimates a 0.77% probability of exploitation in the next 30 days.

How do I fix CVE-2018-3780?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-3780?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST