CVE-2018-5776

Description

WordPress before 4.9.2 has XSS in the Flash fallback files in MediaElement (under wp-includes/js/mediaelement).

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.13% Top 15%
Vendor Advisory wordpress.org Vendor Advisory wordpress.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://wordpress.org/news/2018/01/wordpress-4-9-2-security-and-maintenance-release/ release notes vendor advisory
https://wpvulndb.com/vulnerabilities/9006 third party advisory
https://github.com/WordPress/WordPress/commit/3fe9cb61ee71fcfadb5e002399296fcc1198d850 patch
https://codex.wordpress.org/Version_4.9.2 product vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-5776?
CVE-2018-5776 has been scored as a medium severity vulnerability.
How to fix CVE-2018-5776?
To fix CVE-2018-5776, 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-2018-5776 being actively exploited in the wild?
It is possible that CVE-2018-5776 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.