Vulnerability DatabaseCVE-2021-30492
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CVE-2021-30492
Published:May 14, 2026
Updated:September 28, 2026
Lack of input validation of the Zendesk subdomain could expose users of the library to Server Side Request Forgery (SSRF).
Affected Packages
zendesk/zendesk_api_client_php (PHP):
Affected version(s) >=dev-asee/add-webhook-support <v2.2.11
Fix Suggestion:
Update to version v2.2.11
Related Resources (3)
https://github.com/zendesk/zendesk_api_client_php/commit/b451b743d9d6d81a9abf7cb86e70ec9c5332123e
https://github.com/zendesk/zendesk_api_client_php/pull/466
https://github.com/zendesk/zendesk_api_client_php/security/advisories/GHSA-q348-f93x-9gx4
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)
CWE-918
Improper Input Validation
CWE-20
EPSS
Base Score:
0.39