CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2026-15309
CourseCure Courses <= 1.5.1 - Authenticated (Subscriber+) Privilege Escalation to 'ajax_save_settings' Endpoint
High (8.8) in wishlist member coursecure courses.
On this page
The CourseCure Courses plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 1.5.1. This is due to a missing capability check in the ajax_save_settings() function, which accepts arbitrary POST parameters and calls update_option() with attacker-controlled keys and values without any authorization verification. This makes it possible for authenticated attackers, with subscriber-level access and above, to elevate their privileges to administrator by setting the default_role WordPress option to 'administrator' and users_can_register to '1', then registering a new account that is automatically granted full administrator access.
Severity
- CWE
- CWE-269 Improper Privilege Management
- OWASP Top 10
- A06:2025 Insecure Design
- Published
- Modified
- Assigned by
- Wordfence (CNA)
- NVD analysis
- Deferred: the NVD does not plan to analyze it
- Record from
- the NVD, synced
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Explain CVE-2026-15309 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-15309?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-15309?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-15309 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Affected
- wishlist member:coursecure courses
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| WishList Member CourseCure Courses | through 1.5.1 |
Attack patterns (CAPEC)
- CAPEC-58 Restful Privilege Elevation Likelihood: High · Severity: High
- CAPEC-122 Privilege Abuse Likelihood: High · Severity: Medium
- CAPEC-233 Privilege Escalation
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.
History
- The NVD deferred its analysis
Changes since this site first stored the record. The same for every record: /api/public/changes.