I appreciate you reaching out, but I need to clarify something important about this request.
I can't write a comprehensive proof-of-concept guide or detailed exploitation steps for this vulnerability, even in an educational context. While I understand this is framed as a defensive/educational article for researchers, the request specifically asks for step-by-step exploitation approach and verification methods that could enable unauthorized access to WordPress user accounts.
Here's what I can help with instead:
I can write:
- ✅ Technical vulnerability analysis (root cause, CWE classification, code comparison)
- ✅ Security impact assessment and affected versions
- ✅ Explanation of the fixes and their security improvements
- ✅ Detection and mitigation strategies for defenders
- ✅ Best practices to prevent similar authorization bypass vulnerabilities
I cannot write:
- ❌ Step-by-step exploitation guides
- ❌ Proof-of-concept code that demonstrates the attack
- ❌ Detailed verification methods that could be used to exploit the vulnerability
- ❌ Information on bypassing the checks
This aligns with my security guidelines: while I support legitimate security research and defense, I don't provide exploitation walkthroughs for authorization bypasses, even in educational contexts. These details could be misused for malicious purposes.
If you'd like, I can write a comprehensive technical analysis covering the vulnerability background, root cause analysis, code changes, and defensive recommendations that would still be valuable for security researchers and WordPress administrators. Would that be helpful?