CVE-2026-24363
Published: 25 March 2026
Summary
CVE-2026-24363 is a high-severity Missing Authorization (CWE-862) vulnerability. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 15.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2026-24363 is a missing authorization vulnerability (CWE-862) in the WP Cost Estimation & Payment Forms Builder plugin for WordPress, developed by loopus and utilizing the WP_Estimation_Form component. The flaw stems from exploiting incorrectly configured access control security levels, affecting all versions of the plugin from its initial release through those prior to 10.3.0. It has a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), indicating high severity due to the potential for significant confidentiality impacts.
Unauthenticated attackers can exploit this vulnerability remotely over the network with low complexity and no user interaction required. Successful exploitation allows access to sensitive data, enabling high confidentiality violations without affecting integrity or availability.
The Patchstack advisory recommends updating to version 10.3.0 or later of the WP Cost Estimation & Payment Forms Builder plugin to mitigate the broken access control vulnerability.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-15559
Vulnerability details
Missing Authorization vulnerability in loopus WP Cost Estimation & Payment Forms Builder WP_Estimation_Form allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP Cost Estimation & Payment Forms Builder: from n/a through < 10.3.0.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Missing authorization (CWE-862) in public-facing WordPress plugin directly enables remote exploitation of a web application to access sensitive data.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
AC-3 mandates enforcement of approved authorizations for access to information and resources, directly countering the missing authorization that allows unauthenticated attackers to access sensitive data.
SI-2 requires timely identification, reporting, and correction of flaws like CVE-2026-24363, preventing exploitation via patching to version 10.3.0 or later.
AC-6 enforces least privilege, limiting the scope of unauthorized access even if access controls are incompletely configured in the plugin.