Hi Patrick,
Patrick Boutilier wrote:
On 2025-03-24 07:16, Jens Wahnes wrote:
One solution I found to filter out the malicious content from emails
like the one Nataša described was to tighten the code used to sanitize
HTML in e-mails. This is found in the imp/lib/Mime/Viewer/Html.php
file. The code in the big "switch" statement of the "_node" method,
around line 435 or so, dealing with "case 'style'", can be extended to
call "removeChild($node)" not only in the sub-case of 'text/css', as
already present in the file, but also in the general case. When I
added a statement to that effect, the malicious code from the email
was no longer delivered to the browser. So that's a solution others
may want to try as well, assuming there will be no official patch or
newer version released by Horde maintainers.
Can you provide a patch/diff file for your changes?
It's this code here:
https://github.com/horde/imp/pull/15/commits/51c4173489477692527748f46d35b568df686868
Jens
--
imp mailing list
Frequently Asked Questions: http://wiki.horde.org/FAQ
To unsubscribe, mail: imp-unsubscr...@lists.horde.org
