CVE-1999-1549: Lynx Project Lynx

High severity, CVSS 7.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Lynx 2.x does not properly distinguish between internal and external HTML, which may allow a local attacker to read a "secure" hidden form value from a temporary file and craft a LYNXOPTIONS: URL that causes Lynx to modify the user's configuration file and execute commands.

Affected products

• Lynx Project Lynx: version 2.7 only; version 2.8 only

Published 1999-11-16. Last modified 2026-06-16.