CVE-2026-57770

CRITICAL 9.8

WordPress Grand Photography theme <= 5.7.8 - PHP Object Injection vulnerability

CVSS Score

9.8

EPSS Score

0.6%

EPSS Percentile

43th

Deserialization of Untrusted Data vulnerability in ThemeGoods Grand Photography grandphotography allows Object Injection.This issue affects Grand Photography: from n/a through <= 5.7.8.

CWE	CWE-502
Vendor	themegoods
Product	grand photography
Published	Jul 13, 2026
Last Updated	Jul 13, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

ThemeGoods / Grand Photography

0 ≤ 5.7.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/Wordpress/Theme/grandphotography/vulnerability/wordpress-grand-photography-theme-5-7-8-php-object-injection-vulnerability?_s_id=cve

Credits

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