CVE-2021-39497: eyoucms 1.5.4 lacks sanitization of input data, allowing an attacker to inject a url to trigger blind SSRF...

Security readout for executives and security teams

CVE-2021-39497 describes a blind server-side request forgery issue in eyoucms 1.5.4. An attacker may be able to make the CMS server request a URL they control or specify. The public record is sparse, with no CVSS score, no named fixed version, and no evidence of active exploitation in the supplied sources. Exposure is most likely limited to organizations running eyoucms 1.5.4, especially where functionality tied to saveRemote() or remote URL fetching is reachable by untrusted users. The CVE record lists affected vendor and product as n/a, so confirm exposure through local asset inventory rather than assuming broader impact. Prioritize asset confirmation first. This is not enough evidence for emergency action across all systems, but any internet-facing eyoucms 1.5.4 instance should be reviewed promptly because SSRF can undermine network boundaries and expose internal services. Mitigation focus: Inventory eyoucms deployments and identify any running version 1.5.4.; Check eyoucms vendor or maintainer guidance for fixed versions or configuration changes.; Restrict outbound network access from CMS hosts to required destinations only..

Prepared

Jun 2, 2026, 18:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.