6.5Medium

CVE-2026-66636WordPress Wise Chat plugin <= 3.4.3 - Cross Site Scripting (XSS) vulnerability

Marcin Wise Chat Published: 2026-08-18 16:59 (2 months ago)

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marcin Wise Chat wise-chat allows Stored XSS.This issue affects Wise Chat: from n/a through 3.4.3.

Weakness (CWE): CWE-79

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
Marcin	Wise Chat	≤ 3.4.3

References and patches

https://patchstack.com/database/wordpress/plugin/wise-chat/vulnerability/wordpress-wise-chat-plugin-3-4-cross… vdb-entry

CVSS score

6.5Medium

Source: Patchstack · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: Low

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

All scores (2)

cna	CVSS 3.1	6.5Medium
audit@patchstack.com	CVSS 3.1	6.5Medium

EPSS (chance of exploitation in 30 days)

0.22%

higher than 13% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: no
Technical impact: partial

Timeline

ID reserved2026-07-27
Published2026-08-18 16:59
Reached IP-DB2026-10-24 23:50
Last updated2026-10-07 19:17

Assigned by (CNA): Patchstack
NVD status: Deferred

View at source: CVE.org · NVD

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