A php-phpmailer6 security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: php-phpmailer6-6.4.1-1.fc33

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Fedora Update Notification
FEDORA-2021-ecf4fed550
2021-05-12 16:12:14.610254
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Name : php-phpmailer6
Product : Fedora 33
Version : 6.4.1
Release : 1.fc33
URL :   https://github.com/PHPMailer/PHPMailer
Summary : Full-featured email creation and transfer class for PHP
Description :
PHPMailer - A full-featured email creation and transfer class for PHP

Class Features
* Probably the world's most popular code for sending email from PHP!
* Used by many open-source projects:
WordPress, Drupal, 1CRM, SugarCRM, Yii, Joomla! and many more
* Integrated SMTP support - send without a local mail server
* Send emails with multiple To, CC, BCC and Reply-to addresses
* Multipart/alternative emails for mail clients that do not read HTML email
* Add attachments, including inline
* Support for UTF-8 content and 8bit, base64, binary, and quoted-printable
encodings
* SMTP authentication with LOGIN, PLAIN, CRAM-MD5 and XOAUTH2 mechanisms
over SSL and SMTP+STARTTLS transports
* Validates email addresses automatically
* Protect against header injection attacks
* Error messages in 47 languages!
* DKIM and S/MIME signing support
* Compatible with PHP 5.5 and later
* Namespaced to prevent name clashes
* Much more!

Autoloader: /usr/share/php/PHPMailer/PHPMailer6/autoload.php

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Update Information:

**Version 6.4.1** (April 29th, 2021) * **SECURITY** Fixes CVE-2020-36326, a
regression of CVE-2018-19296 object injection introduced in 6.1.8, see
SECURITY.md for details * Reject more file paths that look like URLs, matching
RFC3986 spec, blocking URLS using schemes such as `ssh2` * Ensure method
signature consistency in `doCallback` calls * Ukrainian language update * Add
composer scripts for checking coding standards and running tests
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ChangeLog:

* Mon May 3 2021 Remi Collet - 6.4.1-1
- update to 6.4.1
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References:

[ 1 ] Bug #1955757 - CVE-2020-36326 php-phpmailer6: Object injection through Phar Deserialization via addAttachment with a UNC pathname [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1955757
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-ecf4fed550' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys