Cyber Resilience

CVE-2023-4836

MediumPublic PoC

Published: 31 October 2023

Published
31 October 2023
Modified
03 April 2025
KEV Added
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Patch
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CVSS Score v3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0028 51.3th percentile
Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-4836 is a medium-severity Authorization Bypass Through User-Controlled Key (CWE-639) vulnerability in Userprivatefiles Wordpress File Sharing Plugin. Its CVSS base score is 4.3 (Medium).

Operationally, ranked in the top 48.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

The WordPress File Sharing Plugin WordPress plugin before 2.0.5 does not check authorization before displaying files and folders, allowing users to gain access to those filed by manipulating IDs which can easily be brute forced

CWE(s)
CWE-639

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

userprivatefiles
wordpress file sharing plugin
≤ 2.0.5

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

AC-24 Access Control Decisions
addresses: CWE-639

Per-request decision making makes it harder to bypass authorization using user-controlled keys without proper validation in the decision process.

AC-3 Access Enforcement
addresses: CWE-639

Consistent enforcement of approved authorizations makes bypassing via user-controlled keys ineffective.

References