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Date: Sat, 17 Jan 2015 02:10:51 +0100
From: Damien Regad <>
Subject: CVE request: CAPTCHA bypass in MantisBT


Please assign a CVE ID for the following issue


An attacker can get an unlimited amount of CAPTCHA "samples" with 
different perturbations for the same challenge, which makes the whole 
captcha utterly useless and very easy to bypass.

Affected versions:
<= 1.2.19

Fixed in versions:
1.2.19 (not yet released)

See Github [1]

This vulnerability was reported [2] by Florent Daigniere from Matta 
The issue was fixed by Damien Regad (MantisBT Developer).

Further details available in our issue tracker [2]


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