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CVE-2021-27777

HIGH
Published 2022-05-12T21:25:31.294598Z
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Expert Analysis

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CVSS Score

V3.1
7.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.003
probability
of exploitation in the wild

There is a 0.3% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.528
Higher than 52.8% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
HIGH
Availability
NONE

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

HCL Software

HCL Unica

Affected Versions:

12 and below

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-cvfm-9587-3rg8

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-27777
WEB https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097124

Advisory provided by GitHub Security Advisory Database. Published: May 13, 2022, Modified: May 25, 2022

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097124
Published: 2022-05-12T21:25:31.294598Z
Last Modified: 2024-09-16T19:31:23.448Z
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