Threat intelligence

Celeste <= 1.3.6 - Unauthenticated PHP Object Injection

CVE-2026-27369 · celeste

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Celeste at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Celeste <= 1.3.6 - Unauthenticated PHP Object Injection
Affected software: celeste(Theme)
Affected versions: ≤ 1.3.6
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-27369
Published: 24 February 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory 4c5b3685-881f-49e8-b551-c29cbd73c4c8). Methodology and redistribution notes

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