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CVE-2018-20149

Status: ModifiedMedium (5.4)—

In WordPress before 4.9.9 and 5.x before 5.0.1, when the Apache HTTP Server is used, authors could upload crafted files that bypass intended MIME type restrictions, leading to XSS, as demonstrated by a .jpg file without JPEG data.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Debian — Debian LinuxWordpress — Wordpress

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2018-20149",
  "cveTags": [],
  "metrics": {
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      ],
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      "value": "In WordPress before 4.9.9 and 5.x before 5.0.1, when the Apache HTTP Server is used, authors could upload crafted files that bypass intended MIME type restrictions, leading to XSS, as demonstrated by a .jpg file without JPEG data."
    },
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    }
  ],
  "lastModified": "2026-06-17T01:52:20.880",
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}