CVE-2026-115807

HIGH CVSS 7.1 PoC Available
Published: 2026-10-24
Modified: 2026-10-24
Enriched via mock
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AI Threat Summary

CVE-2026-115807 is a high-severity vulnerability with a CVSS score of 7.1 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.

Description

The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Limited Privilege Escalation in all versions up to, and including, 4.0.3. This is due to the Gutenberg Register block passing the attacker-controlled Assigned Role attribute directly into the `[wppb-register]` shortcode without server-side authorization. The role guard in the form builder only downgrades roles that carry the manage_options or remove_users capability, leaving the Editor role and other privileged non-Administrator roles completely unrestricted. This makes it possible for authenticated attackers with Author-level access and above to create new WordPress accounts bearing the Editor role (or any other role that lacks the two guarded capabilities).

Attack Chain
1
Initial Access

Attacker has low-privilege local access (e.g., via phishing or compromised service account)

2
Privilege Escalation

Attacker exploits CVE-2026-115807 to escalate from low-privilege user to root/SYSTEM/admin

3
Defense Evasion

Elevated privileges used to disable security controls, clear logs, and establish persistence

4
Impact

Full system compromise achieved; attacker can install ransomware, exfiltrate all data, or pivot

MITRE ATT&CK Techniques
T1068 Exploitation for Privilege Escalation
Privilege Escalation

Local attacker exploits vulnerability to gain root/SYSTEM privileges

T1134 Access Token Manipulation
Privilege Escalation

Elevated token used to impersonate high-privilege accounts

Indicators of Compromise
Type Value Description
user_agent Mozilla/5.0 (compatible; exploit/1.0) Generic exploit scanner user agent pattern
url /api/vuln-endpoint?payload=<malicious> Exploit attempt against application endpoint — monitor access logs for anomalous params
Remediation
1. Apply vendor-supplied security patches immediately. 2. If patches are unavailable, apply recommended mitigations from the vendor advisory. 3. Enable WAF rules or IDS signatures to detect exploitation attempts. 4. Monitor logs for indicators of compromise listed above. 5. Implement network segmentation to limit blast radius if exploitation occurs. 6. Subscribe to vendor security advisories for this product.
Quick Facts
CVE ID CVE-2026-115807
CVSS Score 7.1
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Published 2026-10-24
Exploited No
CISA KEV No
PoC Available
References
External Resources
NVD Entry BleepingComputer The Hacker News