[Mailman-Users] Problem with plus-sign "+" in the list-name

Mark Sapiro mark at msapiro.net
Thu Jun 13 16:29:51 CEST 2013

On 06/13/2013 03:51 AM, Gerhard Rappenecker wrote:
> Hi all,
> since upgrading to mailman 2.1.15 the following problem occurs:
> When lists admins want to change the list parameters or member-list by the webinterface they receive:
> "Error: The form lifetime has expired. (request forgery check)" and no change is done.
> IMPORTANT: This error only happens when the list-name contains a plus-sign "+", like e+test at lists.myorg.com.

This is a bug in the new CSRF checking scheme introduced in 2.1.15. It
will take me a day or so to do a proper fix. In the mean time, you can
edit the Mailman/CSRFcheck.py module by adding immediately following the

def csrf_check(mlist, token):
    """ check token by mailman cookie validation algorithm """

the line

    return True

which will effectively disable the check and return pre-2.1.15 behavior.

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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