CVE-2025-52023

low-risk

Published 2026-01-23

A vulnerability in the PHP backend of gemscms.aptsys.com.sg thru 2025-05-28 allows unauthenticated remote attackers to trigger detailed error messages that disclose internal file paths, code snippets, and stack traces. This occurs when specially crafted HTTP GET/POST requests are sent to public API endpoints, exposing potentially sensitive information useful for further exploitation. This issue is classified under CWE-209: Information Exposure Through an Error Message.

Do I need to act?

0.05% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.3/10 Medium

NETWORK / LOW complexity

Affected Products (1)

Gemscms Backend

Affected Vendors

Aptsys

References (3)

Product http://aptsys.com

Broken Link http://gemscms.com

Third Party Advisory https://gist.github.com/ReverseThatApp/4a6be2b9b2ba39d38c35c8753e0afd39

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low-risk

Severity 21/34 · High

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal