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Date: Thu, 26 Jul 2018 09:50:57 +0200
From: Hanno Böck <>
Subject: Squirrelmail XSS security fix


I recently posted info about several XSS vulns in squirrelmail [1] to
this list.

Given its upstream state I considered forking squirrelmail, though I
reached out to the maintainer and he claims he's still actively working
on it. I sent him a couple of patches, but they're not applied yet.

For now I'm sharing the patches I use on my own installations:

This contains a security fix for the known XSS issues and hopefully a
few more (though I make no claims that this is safe from XSS now, I'd
appreciate if others could check). It also contains patches for PHP
warnings and issues with PHP 7.2.


Hanno Böck

GPG: FE73757FA60E4E21B937579FA5880072BBB51E42

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