Vulnerability · Published Mar 5, 2026 · Assigned by Patchstack
CVE-2026-27369WordPress Celeste theme <= 1.3.6 - PHP Object Injection vulnerability
High 8.1
In plain English
A high-severity unsafe deserialization in Celeste from BoldThemes. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 69.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Deserialization of Untrusted Data vulnerability in BoldThemes Celeste celeste allows Object Injection.This issue affects Celeste: from n/a through <= 1.3.6.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| BoldThemes | Celeste | 0 – through 1.3.6 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H