CVE-2023-2288: Themeisle Otter

High severity, CVSS 8.8. EPSS: 18% chance of exploitation in the next 30 days.

The Otter WordPress plugin before 2.2.6 does not sanitize some user-controlled file paths before performing file operations on them. This leads to a PHAR deserialization vulnerability on PHP < 8.0 using the phar:// stream wrapper.

Affected products

• Themeisle Otter: before 2.2.6 (fixed in 2.2.6)

Published 2023-05-30. Last modified 2026-06-17.