CVE-2018-16286: LG Supersign CMS

Critical severity, CVSS 9.8. EPSS: 21.5% chance of exploitation in the next 30 days.

LG SuperSign CMS allows authentication bypass because the CAPTCHA requirement is skipped if a captcha:pass cookie is sent, and because the PIN is limited to four digits.

Affected products

• LG Supersign CMS: affected versions not specified

Published 2018-09-14. Last modified 2026-06-17.