CVE-2026-16548

The record

The Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat WordPress plugin before 1.8.2 does not validate the type, extension, content, or size of files submitted to its public response endpoint and stores them under the uploads directory, so an unauthenticated user can upload arbitrary files. The original extension is discarded (files are stored under a bare UUID), so this does not yield code execution or stored XSS; impact is bounded to disk consumption and content hosting. The storing path requires the channel's response storage or mail-forwarding to be configured.

Affected packages

Related vulnerabilities

• CVE-2026-76012 The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is… CWE-434
• CVE-2026-119620 A vulnerability was determined in 37954679 cak-filemanagement-system up to… CWE-434
• CVE-2026-115346 The Avada | Website Builder For WordPress & WooCommerce theme for WordPress is vulnerable… CWE-434
• CVE-2026-61738 SOCFortress CoPilot focuses on providing a single pane of glass for all your security… CWE-434
• CVE-2025-68391 ARKETEAM Protectel modules PROTECTELMAJ and BDF are vulnerable to arbitrary file upload… CWE-434
• CVE-2026-61645 Docat is a tool for hosting versioned static documentation. CWE-434
• CVE-2026-90864 A path traversal vulnerability in Progress Software WS_FTP Server versions prior to… CWE-434
• CVE-2026-90866 A path traversal vulnerability in Progress Software WS_FTP Server versions prior to… CWE-434