CVE-2021-27777

HIGH

XML Parser - XXE Injection

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 7.5
EPSS 0.0030
EPSS Percentile 53.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-611 CWE-91
Status published
Products (1)
hcltech/unica < 12.1.1
Published May 12, 2022
Tracked Since Feb 18, 2026