CVE-2026-97278CWE-502insecure-deserialization

CVE-2026-97278

High · published October 14, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
37.0
In the wild
Unconfirmed
What it is

Deserialization of Untrusted Data vulnerability in WP SYNTEX Polylang polylang allows Object Injection.This issue affects Polylang: from n/a through 3.8.9.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00437 · 37.0th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-10-14T17:17Z
References (1)
https://patchstack.com/database/wordpress/plugin/polylang/vulnerability/wordpress-polylang-plugin-3-8-9-php-object-injection-vulnerability?_s_id=cve · [email protected]
EPSS history
Timeline
  • 16 OCT 03:33Z
    EPSS moved — → 0%
    epss
  • 14 OCT 12:08Z
    WordPress Polylang plugin <= 3.8.9 - PHP Object Injection vulnerability
    cvelistv5
  • 14 OCT 12:08Z
    WordPress Polylang plugin <= 3.8.9 - PHP Object Injection vulnerability
    cvelistv5