CVE-2021-27777

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

XML External Entity (XXE) injection vulnerabilities occur when poorly configured XML parsers process user supplied input without sufficient validation. Attackers can exploit this vulnerability to manipulate XML content and inject malicious external entity references.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-91 CWE-611

Affected software

No affected versions have been published.

Timeline

Published: May 12, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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