What is the CVSS score of EUVD-2026-36878?

EUVD-2026-36878 has a CVSS 3.1 base score of 7.4 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.3%.

Which versions of Chatway Live Chat are affected by EUVD-2026-36878?

The Chatway Live Chat WordPress plugin (versions 1.4.8 and earlier) contains a sensitive data exposure vulnerability that allows subscriber-level users to access confidential information beyond their…

How to fix or mitigate EUVD-2026-36878?

Within 24 hours: Audit all WordPress installations for Chatway Live Chat plugin and document affected versions. Within 7 days: Contact Chatway support for patch availability timeline and assess disabling the plugin if no remediation path is provided. Within 30 days: Either apply vendor patch (version > 1.4.8 when released) or migrate to alternative live chat solutions with access controls preventing subscriber-level data exposure.

Chatway Live Chat EUVD-2026-36878

| CVE-2026-49082 HIGH

Insertion of Sensitive Information Into Sent Data (CWE-201)

2026-06-15 Patchstack

GHSA-7q28-f9qc-33fv

Information Disclosure Chatway Live Chat 8211 Ai Chatbot Customer Support Faq Amp Helpdesk Customer Service Amp Chat Buttons

7.4

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) PRIMARY

7.4 HIGH

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

vuln.today AI

4.3 MEDIUM

Network-reachable WordPress endpoint exploitable by any subscriber (PR:L, AC:L, UI:N); description supports only limited confidentiality impact, with no evidence of integrity, availability, or cross-component scope change.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Jun 15, 2026 - 21:36 vuln.today

DescriptionCVE.org

Subscriber Sensitive Data Exposure in Chatway Live Chat – AI Chatbot, Customer Support, FAQ & Helpdesk Customer Service & Chat Buttons <= 1.4.8 versions.

AnalysisAI

Sensitive data exposure in the Chatway Live Chat WordPress plugin (versions <= 1.4.8) allows authenticated subscriber-level users to access information they should not have visibility into. The flaw, reported by Patchstack and tracked as CWE-201 (Insertion of Sensitive Information Into Sent Data), has a CVSS 3.1 score of 7.4 with scope change. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Technical ContextAI

Chatway Live Chat is a WordPress plugin providing live chat, AI chatbot, helpdesk, FAQ and customer-support widget functionality (CPE: cpe:2.3:a:chatway_live_chat:chatway_live_chat...:*). The root cause class is CWE-201, where sensitive information is inserted into data that is sent to actors not authorized to view it - typically via a REST/AJAX endpoint or rendered widget that fails to filter response fields based on the requester's role. Because WordPress assigns every registered user at least the subscriber role by default, any endpoint that authorizes 'logged-in' users without further capability checks effectively exposes data to the lowest privileged tier of the site.

RemediationAI

Upstream fix availability is not independently confirmed from the supplied data; the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/chatway-live-chat/vulnerability/wordpress-chatway-live-chat-ai-chatbot-customer-support-faq-helpdesk-customer-service-chat-buttons-plugin-1-4-8-sensitive-data-exposure-vulnerability should be consulted for the patched release, and administrators should upgrade Chatway Live Chat to the first version above 1.4.8 once published. Until a fix is applied, restrict or disable open user registration in WordPress (Settings → General → 'Anyone can register') so that attackers cannot trivially obtain a subscriber account - accepting the trade-off that legitimate self-service signup is blocked - and audit existing subscriber-tier accounts for unfamiliar users. As a compensating control, block or rate-limit the plugin's REST/AJAX endpoints (typically under /wp-json/chatway/ and admin-ajax.php actions prefixed with the plugin slug) via a WAF or web server rules for non-administrator sessions, recognising this may break legitimate chat functionality for logged-in customers.