CVE-2026-27084

CRITICAL 9.8

WordPress Buisson theme <= 1.1.11 - PHP Object Injection vulnerability

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

6th

Deserialization of Untrusted Data vulnerability in ThemeREX Buisson buisson allows Object Injection.This issue affects Buisson: from n/a through <= 1.1.11.

CWE	CWE-502
Vendor	themerex
Product	buisson
Published	Mar 25, 2026
Last Updated	Mar 26, 2026

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Affected Versions

ThemeREX / Buisson

n/a ≤ <= 1.1.11

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/Wordpress/Theme/buisson/vulnerability/wordpress-buisson-theme-1-1-11-php-object-injection-vulnerability?_s_id=cve

Credits

Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program