CVE-2021-27777

—

CVSS 3.1

7.5 high

EPSS

<1%p55

Published

May 12, 2022 (May 12, 2022)

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.

Vendors: hcltech
Products: unica
Weakness: CWE-91, CWE-611
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.8%)

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