CVE-2014-9117: Mantisbt

Medium severity, CVSS 5.0. EPSS: 2.3% chance of exploitation in the next 30 days.

MantisBT before 1.2.18 uses the public_key parameter value as the key to the CAPTCHA answer, which allows remote attackers to bypass the CAPTCHA protection mechanism by leveraging knowledge of a CAPTCHA answer for a public_key parameter value, as demonstrated by E4652 for the public_key value 0.

Affected products

• Mantisbt Mantisbt: up to and including 1.2.17

Published 2014-12-06. Last modified 2026-06-17.