CVE-2026-81784CWE-502insecure-deserialization

CVE-2026-81784

High · published September 10, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
36.8
In the wild
Unconfirmed
What it is

Deserialization of Untrusted Data vulnerability in Marcin Wise Chat wise-chat allows Object Injection.This issue affects Wise Chat: from n/a through 3.4.2.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00436 · 36.8th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-09-10T19:17Z
References (1)
https://patchstack.com/database/wordpress/plugin/wise-chat/vulnerability/wordpress-wise-chat-plugin-3-4-php-object-injection-vulnerability?_s_id=cve · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 10 SEP 14:23Z
    WordPress Wise Chat plugin <= 3.4 - PHP Object Injection vulnerability
    cvelistv5