SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2025-39354

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

CRITICAL 9.8EPSS 0.46%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.46% probability · 39th percentile
CISA KEV
Not listed
Weakness
CWE-502
Affected
themegoods/grand conference
Source
audit@patchstack.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.