CVE-2026-5130 | jhimross Debugger & Troubleshooter Plugin up to 1.3.2 on WordPress wp_debug_troubleshoot_simulate_user cookie cookie validation

VDB-354306 · CVE-2026-5130 · GCVE-0-2026-5130 JHIMROSS DEBUGGER & TROUBLESHOOTER PLUGIN UP TO 1.3.2 ON WORDPRESS WP_DEBUG_TROUBLESHOOT_SIMULATE_USER COOKIE COOKIE VALIDATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.4 $0-$5k 0.99+ Summaryinfo A vulnerability categorized as critical has been discovered in jhimross Debugger & Troubleshooter Plugin up to 1.3.2 on WordPress. The impacted element is the function wp_debug_troubleshoot_simulate_user. The manipulation of the argument cookie results in cookie validation. This vulnerability is identified as CVE-2026-5130. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component. Detailsinfo A vulnerability, which was classified as critical, was found in jhimross Debugger & Troubleshooter Plugin up to 1.3.2 on WordPress. Affected is the function wp_debug_troubleshoot_simulate_user. The manipulation of the argument cookie with an unknown input leads to a cookie validation vulnerability. CWE is classifying the issue as CWE-565. The product relies on the existence or values of cookies when performing security-critical operations, but it does not properly ensure that the setting is valid for the associated user. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: The Debugger & Troubleshooter plugin for WordPress was vulnerable to Unauthenticated Privilege Escalation in versions up to and including 1.3.2. This was due to the plugin accepting the wp_debug_troubleshoot_simulate_user cookie value directly as a user ID without any cryptographic validation or authorization checks. The cookie value was used to override the determine_current_user filter, which allowed unauthenticated attackers to impersonate any user by simply setting the cookie to their target user ID. This made it possible for unauthenticated attackers to gain administrator-level access and perform any privileged actions including creating new administrator accounts, modifying site content, installing plugins, or taking complete control of the WordPress site. The vulnerability was fixed in version 1.4.0 by implementing a cryptographic token-based validation system where only administrators can initiate user simulation, and the cookie contains a random 64-character token that must be validated against database-stored mappings rather than accepting arbitrary user IDs. The weakness was released by Nabil Irawan. The advisory is available at wordfence.com. This vulnerability is traded as CVE-2026-5130 since 03/30/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. Upgrading to version 1.3.2 eliminates this vulnerability. Productinfo Type WordPress Plugin Vendor jhimross Name Debugger & Troubleshooter Plugin Version 1.3.0 1.3.1 1.3.2 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.6 VulDB Meta Temp Score: 7.4 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.8 CNA Vector (Wordfence): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cookie validation CWE: CWE-565 / CWE-20 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Debugger & Troubleshooter Plugin 1.3.2 Timelineinfo 03/30/2026 CVE reserved 03/31/2026 +1 days Advisory disclosed 03/31/2026 +0 days VulDB entry created 03/31/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Nabil Irawan Status: Confirmed CVE: CVE-2026-5130 (🔒) GCVE (CVE): GCVE-0-2026-5130 GCVE (VulDB): GCVE-100-354306 Entryinfo Created: 03/31/2026 08:11 Changes: 03/31/2026 08:11 (67) Complete: 🔍 Cache ID: 99:44F:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸