CVE-2018-5776: WordPress before 4.9.2 has XSS in the Flash fallback files in MediaElement (under wp-includes/js/mediaelement).

medium Affects WordPress core. Feed 2026.10.29.1, updated 2026-10-28; published 2018-01-18; advisory modified 2026-06-17.

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

Package: WordPress core WordPress
Affected versions: <4.9.2
Fixed in: 4.9.2
Severity: medium CVSS 6.1
Exploitation: not on CISA KEV · EPSS 2% (80.9th percentile)
Published: 2018-01-18
Source: nvd

References

CWE-79

NVD record WordPress core advisories

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