Today/CVE-2026-54859

CVE-2026-54859

ThemeREX Preservation — WordPress Preservation theme <= 1.15 - PHP Object Injection vulnerability

critical.is priorityof 100

29

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 No EPSS score.000 × 200.0 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Unauthenticated PHP Object Injection in Preservation <= 1.15 versions.

Affected

ProductAffectedFixed inSource

Preservationn/a – 1.15–CNA

Scores by source

Patchstack (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refpatchstack.com/database/wordpress/theme/preservation/vulnerability/wordpress-preservation-theme-1-15-php-object-injection-vulnerability?_s_id=cve