CVE-2026-8878: Securly

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Version 3.0.7 of the Securly Chrome Extension exposes multiple publicly accessible endpoints that allow unauthenticated access to sensitive data. The exposed information consists of SHA-1 hashes that are inadequately obfuscated using a simple Caesar cipher, which can be easily reversed to recover the original hash values and access the protected data.

Affected products

• Securly Securly: version 3.0.7 only

Published 2026-06-03. Last modified 2026-07-22.