CVE-2018-10101

Name: CVE-2018-10101
Creator: NVD / NIST
Published: 2018-04-16T09:58:09.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.26%

Last modified Jun 17, 2026

CVE-2018-10101 is a vulnerability of currently unknown severity. Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.. EPSS estimates a 3.26% chance of exploitation in the next 30 days.

Description

Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.

Metrics

EPSS Probability

3.26%

86.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-601

Affected Software

Vendor	Product	Versions
Wordpress	Wordpress	< 4.9.5
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

http://www.securityfocus.com/bid/104350Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040836Third Party Advisory, VDB Entry
https://codex.wordpress.org/Version_4.9.5Vendor Advisory
https://core.trac.wordpress.org/changeset/42894Patch, Vendor Advisory
https://github.com/WordPress/WordPress/commit/804363859602d4050d9a38a21f5a65d9aec18216Patch, Third Party Advisory
https://wordpress.org/news/2018/04/wordpress-4-9-5-security-and-maintenance-release/Vendor Advisory
https://wpvulndb.com/vulnerabilities/9053Third Party Advisory
https://www.debian.org/security/2018/dsa-4193Third Party Advisory
http://www.securityfocus.com/bid/104350Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040836Third Party Advisory, VDB Entry
https://codex.wordpress.org/Version_4.9.5Vendor Advisory
https://core.trac.wordpress.org/changeset/42894Patch, Vendor Advisory
https://github.com/WordPress/WordPress/commit/804363859602d4050d9a38a21f5a65d9aec18216Patch, Third Party Advisory
https://wordpress.org/news/2018/04/wordpress-4-9-5-security-and-maintenance-release/Vendor Advisory
https://wpvulndb.com/vulnerabilities/9053Third Party Advisory
https://www.debian.org/security/2018/dsa-4193Third Party Advisory

Timeline

Published: Apr 16, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-10101?

Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.

How severe is CVE-2018-10101?

Severity scoring for CVE-2018-10101 is pending analysis. The EPSS model estimates a 3.26% probability of exploitation in the next 30 days.

How do I fix CVE-2018-10101?

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-2018-10101?

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

Scan your code now

Source: NVD / NIST