CVE-2021-35963

CRITICAL

Published Jul 19, 20214y ago · Modified Jun 17, 20262w ago

9.8 CVSS 3.1

Critical

Published Jul 19, 2021 4y ago

Last Modified Jun 17, 2026 2w ago

Description

The specific parameter of upload function of the Orca HCM digital learning platform does not filter file format, which allows remote unauthenticated attackers to upload files containing malicious script to execute RCE attacks.

CVSS Details

Base Score

9.8

Exploitability

3.9

Impact

5.9

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt

Affected Products 1

Vendor	Product	Version	Range
learningdigital	orca_hcm	*	≤10.0

References 2

chtsecurity.com https://www.chtsecurity.com/news/ba7b3ae7-14f3-4970-b3f6-4d97d8c7ea25

Third Party Advisory
twcert.org.tw https://www.twcert.org.tw/tw/cp-132-4923-d68e6-1.html

Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.