EUVD-2026-44893
GHSA-h524-vxvw-w455
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Network exploitation requires only subscriber credentials (PR:L); no confidentiality breach or direct availability impact on the WordPress system itself justifies C:N and A:N.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Lifecycle Timeline
2DescriptionCVE.org
The WPBot - AI ChatBot for Live Support, Lead Generation, AI Services plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 8.5.6. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to trigger arbitrary re-embedding of stored RAG documents, modifying the rag_documents table and consuming the site owner's paid third-party AI API credits (OpenAI, Gemini, OpenRouter, or xAI).
AnalysisAI
Authorization bypass in the WPBot AI ChatBot plugin for WordPress (all versions ≤ 8.5.6) permits any subscriber-level authenticated user to invoke the plugin's RAG document re-embedding functionality without authorization, directly modifying the rag_documents database table and triggering calls to the site owner's paid AI APIs (OpenAI, Gemini, OpenRouter, or xAI). The root cause is a missing capability check in class-qcld-bot-rag.php, confirmed by Wordfence and traceable to specific code paths in qcld-wpwbot.php. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid WordPress account with at minimum subscriber-level access - the lowest registered-user role, obtainable via standard WordPress registration if open registration is enabled. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) accurately captures the narrow CIA-triad impact: no data is exposed, and integrity impact is limited to modification of the rag_documents table. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers or uses an existing subscriber-level WordPress account on a site running WPBot ≤ 8.5.6 with an AI API key configured. The attacker sends repeated authenticated HTTP requests to the plugin's RAG re-embedding action, each of which the server processes without checking user capabilities, triggering embedding API calls to the site owner's OpenAI or Gemini account. … |
| Remediation | Update the WPBot plugin to version 8.5.7 or later; a fix was committed upstream per the WordPress plugin trac changeset (https://plugins.trac.wordpress.org/changeset?reponame=&old=3608558%40chatbot&new=3608558%40chatbot). … Detailed patch versions, workarounds, and compensating controls in full report. |
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Stored cross-site scripting in the WPBot AI ChatBot for WordPress (all versions through 8.4.9) lets unauthenticated atta
Unauthorized deletion of chat session records in the WPBot WordPress plugin affects all versions through 8.5.6, allowing
Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
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