CVE-2021-30492

Lack of Input Validation in zendesk_api_client_php for Zendesk Subdomain

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

No source gives a CVSS score.

Trivy's own label is CRITICAL. Rated critical by GHSA.

Description

### Impact Lack of input validation of the Zendesk subdomain could expose users of the library to Server Side Request Forgery (SSRF). ### Resolution Validate the provided Zendesk subdomain to be a valid subdomain in: * getAuthUrl * getAccessToken

Affected packages and fixed versions

Source	Package	Fixed in
composer::GitHub Security Advisory Composer	zendesk/zendesk_api_client_php	2.2.11

References

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.