CVE-2026-24536
Published: 23 January 2026
Summary
CVE-2026-24536 is a medium-severity Exposure of Sensitive System Information to an Unauthorized Control Sphere (CWE-497) vulnerability. Its CVSS base score is 5.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 2.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
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.
Ongoing reviews detect and remove sensitive system information before it reaches publicly accessible systems.
Employs detection to prevent unauthorized mining of sensitive system information from being exfiltrated to external control spheres.
Documenting where system information is processed and stored prevents exposure to unauthorized control spheres.
The control stops sensitive system information from crossing into unauthorized control spheres through EM emanations.
Authorization and minimization requirements keep PII out of test/research control spheres that often lack production-grade protections.
Documented categorization of system information reduces the chance that sensitive internals are left exposed to unauthorized spheres.
System information is concealed or replaced with decoys, reducing leakage to unauthorized observers.
Ensures sensitive system information is not disclosed outside the intended control sphere through error output.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The unauthenticated remote exposure in a public-facing WordPress plugin directly enables exploitation of a public-facing application (T1190) to obtain sensitive system information, which facilitates System Information Discovery (T1082).
NVD Description
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in webpushr Webpushr webpushr-web-push-notifications allows Retrieve Embedded Sensitive Data.This issue affects Webpushr: from n/a through <= 4.38.0.
Deeper analysisAI
CVE-2026-24536 is an Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability (CWE-497) in the webpushr-web-push-notifications WordPress plugin. This flaw allows retrieval of embedded sensitive data and affects all versions of the Webpushr plugin up to and including 4.38.0.
Remote unauthenticated attackers can exploit this vulnerability over the network with low attack complexity and no user interaction required. Exploitation results in low-impact disclosure of sensitive system information, with no effects on integrity or availability, as reflected in the CVSS v3.1 base score of 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
The Patchstack advisory documents this sensitive data exposure issue specifically in Webpushr plugin version 4.38.0 for WordPress, available at https://patchstack.com/database/Wordpress/Plugin/webpushr-web-push-notifications/vulnerability/wordpress-webpushr-plugin-4-38-0-sensitive-data-exposure-vulnerability?_s_id=cve.
Details
- CWE(s)