CVE-2017-5490

Description

Cross-site scripting (XSS) vulnerability in the theme-name fallback functionality in wp-includes/class-wp-theme.php in WordPress before 4.7.1 allows remote attackers to inject arbitrary web script or HTML via a crafted directory name of a theme, related to wp-admin/includes/class-theme-installer-skin.php.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.31% Top 25%
Vendor Advisory debian.org Vendor Advisory wordpress.org Vendor Advisory wordpress.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/95402 vdb entry
http://www.debian.org/security/2017/dsa-3779 vendor advisory
https://wpvulndb.com/vulnerabilities/8718
https://www.mehmetince.net/low-severity-wordpress/ third party advisory technical description
https://github.com/WordPress/WordPress/commit/ce7fb2934dd111e6353784852de8aea2a938b359 patch
https://codex.wordpress.org/Version_4.7.1 release notes vendor advisory
http://www.openwall.com/lists/oss-security/2017/01/14/6 third party advisory mailing list
http://www.securitytracker.com/id/1037591 vdb entry
https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-5490?
CVE-2017-5490 has been scored as a medium severity vulnerability.
How to fix CVE-2017-5490?
To fix CVE-2017-5490, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5490 being actively exploited in the wild?
It is possible that CVE-2017-5490 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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