BoldThemes WordPress Celeste Theme PHP Object Injection Vulnerability

Vulnerability

A deserialization vulnerability allowing object injection has been identified in the BoldThemes WordPress Celeste theme, affecting versions through 1.3.6. This vulnerability could lead to various types of code injection, including SQL injection, path traversal, and denial-of-service, especially if a suitable property-oriented programming chain is available.

Impact

Exploitation of this vulnerability could allow for PHP object injection, which could be leveraged to execute code injection, SQL injection, path traversal, denial-of-service, and more, provided a proper object-oriented programming chain is in place.

Remediation

Users are advised to mitigate this vulnerability immediately. Patchstack has issued a mitigation rule to block attacks until an official patch is available. For more information on how to apply this mitigation, visit the Patchstack website.

Added: Mar 5, 2026, 7:14 AM
Updated: Mar 5, 2026, 7:14 AM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
0.6
exploitability
6.8
remediation
0.0
relevance
3.5
threat
0.0
urgency
2.9
incentive
4.2

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.