The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.8.0 This is due to a chain of missing input neutralization and output escaping across the /mwai-ui/v1/chats/submit REST endpoint, the PHP error-log parser (MeowKit_MWAI_Helpers::php_error_logs), the Advisor task (Meow_MWAI_Modules_Advisor::run_advisor), and the Advisor dashboard widget (advisor_metabox): the server-parameter denylist in chat_submit strips only exact key names such as 'model' while convert_keys() later canonicalizes 'model_' back to 'model', allowing an unauthenticated caller to place an attacker-controlled string (including CR/LF) into $query->model; final_checks() throws an Exception whose message embeds that raw string, and the non-streaming, non-admin catch branch writes it to the PHP error log unmodified — creating a forged log line that the plugin's own parser subsequently returns as recent PHP-error content; run_advisor() then appends that content verbatim to the AI prompt (indirect prompt injection — CWE-1427), the returned JSON is stored in the mwai_advisor_data option with no schema validation or HTML sanitization, and advisor_metabox() concatenates the resulting 'title' and 'description' values directly into the WordPress dashboard widget without esc_html(), wp_kses(), or equivalent escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses the WordPress dashboard.
CVE-2026-96561
Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-10-01. A secondary CVSS source baseline 7.2; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
- CVSS v3
- 7.2
- EG Score
- 7.2HIGHhigh confidence
- EG Risk
- 33EG Risk 33/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity72% × 45%Exploitation0% × 40%Automatability0% × 15%CISA SSVC: Track at every mission impact level.Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix. - EPSS PROB
- 0.3%
- EPSS %ILE
- 23rd
- KEV
- Not listed
CISA SSVCTrack at every mission impact level.
No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 1, 2026
Last Modified
October 1, 2026
References (12)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/engines/core.php#L533
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/advisor.php#L156
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/advisor.php#L162
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/advisor.php#L216
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/chatbot.php#L122
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/chatbot.php#L299
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/modules/chatbot.php#L597
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/query/base.php#L360
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/classes/rest.php#L464
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ai-engine/tags/3.8.0/common/helpers.php#L251
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?old_path=%2Fai-engine%2Ftags%2F3.8.0&new_path=%2Fai-engine%2Ftags%2F3.8.1
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/910e51da-6ee2-45d5-837b-7fea80f79390?source=cve
Vendor Advisories for CVE-2026-96561(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 22× in last 7d / 22× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-04 23:54 UTCEG score recompute
- 2026-10-04 23:53 UTCGHSA enrichment
- 2026-10-04 23:23 UTCEPSS rescore
- 2026-10-04 12:25 UTCGHSA enrichment
- 2026-10-04 00:56 UTCEG score recompute
- 2026-10-04 00:56 UTCGHSA enrichment
- 2026-10-03 14:26 UTCEPSS rescore
- 2026-10-03 13:28 UTCGHSA enrichment
- 2026-10-03 01:59 UTCEG score recompute
- 2026-10-03 01:59 UTCGHSA enrichment
- 2026-10-02 17:57 UTCEPSS rescore
- 2026-10-02 14:30 UTCGHSA enrichment
- 2026-10-02 02:54 UTCGHSA enrichment
- 2026-10-01 15:23 UTCEG score recompute
- 2026-10-01 15:23 UTCGHSA enrichment
- 2026-10-01 14:42 UTCEG score recompute
- 2026-10-01 14:42 UTCGHSA enrichment
- 2026-10-01 12:49 UTCEG score recompute
- 2026-10-01 12:49 UTCGHSA enrichment
- 2026-10-01 04:19 UTCEG score recompute
- 2026-10-01 03:36 UTCEG score recompute
- 2026-10-01 03:35 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-96561?
When was CVE-2026-96561 disclosed?
Is CVE-2026-96561 actively exploited?
What is the CVSS score of CVE-2026-96561?
How do I remediate CVE-2026-96561?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-96561
Is Your Infrastructure Affected by CVE-2026-96561?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.