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CVE-2018-20151: In WordPress before 4.9.9 and 5.x before 5.0.1, the user-activation page could be read by a search engine's web crawler if an unusual configuration were chosen. The search engine could then index and

high Affects WordPress core. Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

In WordPress before 4.9.9 and 5.x before 5.0.1, the user-activation page could be read by a search engine's web crawler if an unusual configuration were chosen. The search engine could then index and

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
high  CVSS 7.5
Exploitation
not on CISA KEV · EPSS 6% (93.1th percentile)
Published
2018-12-14
Source
nvd

References

CWE-200
NVD recordWordPress core advisories

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