CVE-2025-47784: Emlog

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Emlog is an open source website building system. Versions 2.5.13 and prior have a deserialization vulnerability. A user who creates a carefully crafted nickname can cause `str_replace` to replace the value of `name_orig` with empty, causing deserialization to fail and return `false`. Commit 9643250802188b791419e3c2188577073256a8a2 fixes the issue.

Affected products

• Emlog Emlog: before 2.5.14 (fixed in 2.5.14)

Published 2025-05-15. Last modified 2026-06-17.