CVE-2026-78535

Received Received - Intake

Unauthenticated PHP Object Injection in Photolia

Publication date: 2026-10-10

Last updated on: 2026-10-10

Assigner: Patchstack

Description

Unauthenticated PHP Object Injection in Photolia <= 1.0.3 versions.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-10

Last Modified

2026-10-10

Generated

2026-10-11

AI Q&A

2026-10-11

EPSS Evaluated

N/A

NVD

CVE-2026-78535

EUVD

EUVD-2026-96530

Affected Vendors & Products

Vendor	Product	Version / Range
ThemeRex	Photolia	n/a

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-502	The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Attack-Flow Graph

Executive Summary

This is an unauthenticated PHP Object Injection vulnerability in the Photolia WordPress theme versions 1.0.3 and below. It allows attackers to inject malicious PHP objects into the application without authentication, potentially leading to remote code execution or data manipulation on the server.

Impact Analysis

An attacker could exploit this to take full control of your website, steal sensitive data, deface pages, or use your server for malicious activities. Since it requires no authentication, any unpatched website using the vulnerable theme is at high risk of compromise.

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, violating GDPR and HIPAA requirements for data protection. Non-compliance may result in legal penalties, fines, and reputational damage due to exposed user data.

Mitigation Strategies

Immediately update the Photolia theme to the latest version if available. If no official patch exists, apply the mitigation rule provided by Patchstack to block attacks. Seek assistance from a hosting provider or developer for further protection.

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