CVE-2018-20150: In WordPress before 4.9.9 and 5.x before 5.0.1, crafted URLs could trigger XSS for certain use cases involving plugins.

medium Affects WordPress core. Feed 2026.10.29.1, updated 2026-10-28; published 2018-12-14; advisory modified 2026-06-17.

In WordPress before 4.9.9 and 5.x before 5.0.1, crafted URLs could trigger XSS for certain use cases involving plugins.

Package: WordPress core WordPress
Affected versions: <4.9.9 or >=5.0 and <5.0.1
Fixed in: 4.9.9, 5.0.1
Severity: medium CVSS 6.1
Exploitation: not on CISA KEV · EPSS 4% (91.0th percentile)
Published: 2018-12-14
Source: nvd

References

CWE-79

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