How severe is CVE-2025-52023?

CVE-2025-52023 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-52023 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52023?

CVE-2025-52023 affects Aptsys Gemscms Backend. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-52023?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-52023 have an EU (EUVD) identifier?

Yes. CVE-2025-52023 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4255.

When was CVE-2025-52023 published?

CVE-2025-52023 was published on 2026-01-23 and last updated on 2026-07-05.

CVE-2025-52023

CVE-2025-52023 is a medium-severity vulnerability in Aptsys Gemscms Backend with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4255
Weakness: CWE-209
Affected product: Aptsys Gemscms Backend
Published: 2026-01-23
Last modified: 2026-07-05

Description

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.

Frequently asked questions

What is CVE-2025-52023?: 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.
How severe is CVE-2025-52023?: CVE-2025-52023 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-52023 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52023?: CVE-2025-52023 affects Aptsys Gemscms Backend. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-52023?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-52023 have an EU (EUVD) identifier?: Yes. CVE-2025-52023 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4255.
When was CVE-2025-52023 published?: CVE-2025-52023 was published on 2026-01-23 and last updated on 2026-07-05.

References

https://gist.github.com/ReverseThatApp/4a6be2b9b2ba39d38c35c8753e0afd39

EU advisories (EUVD)

Affected products (1)

cpe:2.3:a:aptsys:gemscms_backend:*:*:*:*:*:*:*:*

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