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IDProjectCategoryView StatusLast Update
0027156mantisbtsecuritypublic2022-07-30 11:04
Reporterdregad Assigned To 
Status confirmedResolutionopen 
Summary0027156: Replace SecurImage Captcha library

The SecurImage captcha library we've been relying on since 2013 is no longer maintained. We need to identify and implement an alternative.

TagsNo tags attached.


related to 0027155 closeddregad Update securimage to 3.6.8 
related to 0027157 closeddregad Update securimage to 4.0.2 
related to 0021863 new Pluggable signup pages 
related to 0030794 closeddregad Captcha image not showing on PHP 8.1 
related to 0030814 closeddregad Captcha audio not working 




2021-09-03 11:56

developer   ~0065816

One possible candidate to evaluate



2022-03-14 06:38

reporter   ~0066357

Instead of just replacing one captcha solution with another, I think it would be great if captchas could be modularized and customized. I created 0021863 for this a while ago. The main rationale consists of two points:

  • Being able to offer e.g. a text-based captcha would increase accessibility.
  • Custom captchas drive away spammers, as they usually concentrate their effort on the default captcha methods.

To satisfy both points, a custom captcha could for example consist of user-defined textual questions, which typically cannot be solved by spam bots, while also being accessible to blind users.