CVE-2025-39354

CRITICAL

ThemeGoods Grand Conference <= 5.3 - PHP Object Injection via Untrusted Data Deserialization

Title source: llm

Description

Deserialization of Untrusted Data vulnerability in ThemeGoods Grand Conference grandconference allows Object Injection.This issue affects Grand Conference: from n/a through <= 5.3.

References (2)

Core 2

Core References

Vdb Entry vdb-entry

https://patchstack.com/database/Wordpress/Theme/grandconference/vulnerability/wordpress-grand-conference-theme-5-2-php-object-injection-vulnerability?_s_id=cve

Third Party Advisory

https://patchstack.com/database/wordpress/plugin/grandconference/vulnerability/wordpress-grand-conference-theme-5-2-php-object-injection-vulnerability?_s_id=cve

Scores

CVSS v3 9.8

EPSS 0.0040

EPSS Percentile 31.2%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-502

Status published

Products (2)

ThemeGoods/Grand Conference < 5.3

themegoods/grand_conference < 5.3

Published May 19, 2025

Tracked Since Feb 18, 2026