Sourced from phpmailer/phpmailer's releases.

PHPMailer 6.5.0

This is a security release.

• SECURITY Fixes CVE-2021-34551, a complex RCE affecting Windows hosts. See https://github.com/PHPMailer/PHPMailer/blob/HEAD/SECURITY.md for details.
• The fix for this issue changes the way that language files are loaded. While they remain in the same PHP-like format, they are processed as plain text, and any code in them will not be run, including operations such as concatenation using the . operator.
• Deprecation The current translation file format using PHP arrays is now deprecated; the next major version will introduce a new format.
• SECURITY Fixes CVE-2021-3603 that may permit untrusted code to be run from an address validator. See https://github.com/PHPMailer/PHPMailer/blob/HEAD/SECURITY.md for details.
• The fix for this issue includes a minor BC break: callables injected into validateAddress, or indirectly through the $validator class property, may no longer be simple strings. If you want to inject your own validator, provide a closure instead of a function name.
• Haraka message ID strings are now recognised

Thanks to Vikrant Singh Chauhan, listensec.com, and the WordPress security team for reporting and assistance with this release.

Sourced from phpmailer/phpmailer's changelog.

Version 6.5.0 (June 16th, 2021)

• SECURITY Fixes CVE-2021-34551, a complex RCE affecting Windows hosts. See https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md for details.
• The fix for this issue changes the way that language files are loaded. While they remain in the same PHP-like format, they are processed as plain text, and any code in them will not be run, including operations such as concatenation using the . operator.
• Deprecation The current translation file format using PHP arrays is now deprecated; the next major version will introduce a new format.
• SECURITY Fixes CVE-2021-3603 that may permit untrusted code to be run from an address validator. See https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md for details.
• The fix for this issue includes a minor BC break: callables injected into validateAddress, or indirectly through the $validator class property, may no longer be simple strings. If you want to inject your own validator, provide a closure instead of a function name.
• Haraka message ID strings are now recognised

• a5b5c43 Changelog
• e121da3 Merge branch 'master' of https://github.com/PHPMailer/PHPMailer
• 74e512a Security update
• acd264b Merge branch 'CVE-2021-34551'
• 0063f83 Changelog
• 707205f Changelog
• 1047838 Changelog
• c2f191b Changelog
• 45f3c18 Deny string-based callables altogether
• 6334bab CVE docs
• Additional commits viewable in compare view

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PHPMailer 6.4.1

This is a security release.

• 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

Thanks to Fariskhi Vidyan for the report and assistance, and Tidelift for support.

PHPMailer 6.4.0

This is a maintenance release. The changes introduced in 6.3.0 for setting an envelope sender automatically when using mail() caused problems, especially in WordPress, so this change has been reverted. It gets a minor version bump as it's a change in behaviour, but only back to what 6.2.0 did. See #2298 for more info.

Other changes:

• Check for the mbstring extension before decoding addresss in parseAddress, so it won't fail if you don't have it installed
• Add Serbian Latin translation (sr_latn)
• Enrol PHPMailer in Tidelift, because supporting open-source is important!

PHPMailer 6.3.0

This is a maintenance release.

• Handle early connection errors such as 421 during connection and EHLO states
• Switch to Github Actions for CI
• Generate debug output for mail(), sendmail, and qmail transports. Enable using the same mechanism as for SMTP: set SMTPDebug > 0
• Make the mail() and sendmail transports set the envelope sender the same way as SMTP does, i.e. use whatever From is set to, only falling back to the sendmail_from php.ini setting if From is unset. This avoids errors from the mail() function if Sender is not set explicitly and php.ini is not configured. This is a minor functionality change, so bumps the minor version number.
• Extend parseAddresses to decode encoded names, improve tests

Sourced from phpmailer/phpmailer's changelog.

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

Version 6.4.0 (March 31st, 2021)

• Revert change that made the mail() and sendmail transports set the envelope sender if one isn't explicitly provided, as it causes problems described in PHPMailer/PHPMailer#2298
• Check for mbstring extension before decoding addresss in parseAddress
• Add Serbian Latin translation (sr_latn)
• Enrol PHPMailer in Tidelift

Version 6.3.0 (February 19th, 2021)

• Handle early connection errors such as 421 during connection and EHLO states
• Switch to Github Actions for CI
• Generate debug output for mail(), sendmail, and qmail transports. Enable using the same mechanism as for SMTP: set SMTPDebug > 0
• Make the mail() and sendmail transports set the envelope sender the same way as SMTP does, i.e. use whatever From is set to, only falling back to the sendmail_from php.ini setting if From is unset. This avoids errors from the mail() function if Sender is not set explicitly and php.ini is not configured. This is a minor functionality change, so bumps the minor version number.
• Extend parseAddresses to decode encoded names, improve tests

• 9256f12 6.4.1
• fd7ec67 Add more tests for bad paths
• 26f2848 Reorder path checks, fixes CVE-2020-36326
• bc51d1f Add not-strictly-necessary backslash to avoid ambiguity
• 7f267fb Match all RFC3986 scheme patterns
• b1038ee Add composer scripts for syntax check and tests
• 0acc57d make text compliance with Ukrainian orthography (#2317)
• 08cf13b Make use of $to in doCallback consistent, see #2305
• be427db Make use of $to in doCallback consistent
• 050d430 6.4.0
• Additional commits viewable in compare view

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PHPMailer 6.1.6

This is a security release, with some other minor changes. For full details, refer to the advisory.

• SECURITY Fix insufficient output escaping bug in file attachment names. CVE-2020-13625. Reported by Elar Lang of Clarified Security.
• Correct Armenian ISO language code from am to hy, add mapping for fallback
• Use correct timeout property in debug output

PHPMailer 6.1.5

This is a maintenance release.

• Reject invalid custom headers that are empty or contain breaks
• Various fixes for DKIM issues, especially when using mail() transport
• Drop the l= length tag from DKIM signatures; it's a mild security risk
• Ensure CRLF is used explicitly when needed, rather than static::$LE
• Add a method for trimming header content consistently
• Some minor tweaks to resolve static analyser complaints
• Check that attachment files are readable both when adding and when sending
• Work around Outlook bug in mishandling MIME preamble
• Danish translation improvements

PHPMailer 6.1.4

The RFC2047 folding added in 6.1.0 was a little overenthusiastic; It will now only happen when header lines exceed 998 chars.

• Clean up hostname handling
• Avoid IDN error on older PHP versions, prep for PHP 8.0
• Don't force RFC2047 folding unnecessarily
• Enable tests on full release of PHP 7.4

PHPMailer 6.1.3

• Fix an issue preventing injected debug handlers from working
• Fix an issue relating to connection timeout
• Add SMTP::MAX_REPLY_LENGTH constant
• Remove some dev dependencies; phpdoc no longer included
• Fix an issue where non-compliant servers returning bare codes caused an SMTP hang

PHPMailer 6.1.2

• Substantial revision of DKIM header generation
• Use shorter hashes for auto-generated CID values
• Fix format of content-id headers, and only use them for inline attachments
• Remove all use of XHTML
• Lots of coding standards cleanup
• API docs are now auto-updated via GitHub actions
• Fix header separation bug created in 6.1.1
• Fix misidentification of background attributes in SVG images in msgHTML

PHPMailer 6.1.1

No code changes, just retagging for a misordered commit for 6.1.0.

PHPMailer 6.1.0

... (truncated)

Sourced from phpmailer/phpmailer's changelog.

Version 6.1.6 (May 27th, 2020)

• SECURITY Fix insufficient output escaping bug in file attachment names. CVE-2020-13625. Reported by Elar Lang of Clarified Security.
• Correct Armenian ISO language code from am to hy, add mapping for fallback
• Use correct timeout property in debug output

Version 6.1.5 (March 14th, 2020)

• Reject invalid custom headers that are empty or contain breaks
• Various fixes for DKIM issues, especially when using mail() transport
• Drop the l= length tag from DKIM signatures; it's a mild security risk
• Ensure CRLF is used explicitly when needed, rather than static::$LE
• Add a method for trimming header content consistently
• Some minor tweaks to resolve static analyser complaints
• Check that attachment files are readable both when adding and when sending
• Work around Outlook bug in mishandling MIME preamble
• Danish translation improvements

Version 6.1.4 (December 10th, 2019)

• Clean up hostname handling
• Avoid IDN error on older PHP versions, prep for PHP 8.0
• Don't force RFC2047 folding unnecessarily
• Enable tests on full release of PHP 7.4

Version 6.1.3 (November 21st, 2019)

• Fix an issue preventing injected debug handlers from working
• Fix an issue relating to connection timeout
• Add SMTP::MAX_REPLY_LENGTH constant
• Remove some dev dependencies; phpdoc no longer included
• Fix an issue where non-compliant servers returning bare codes caused an SMTP hang

Version 6.1.2 (November 13th, 2019)

• Substantial revision of DKIM header generation
• Use shorter hashes for auto-generated CID values
• Fix format of content-id headers, and only use them for inline attachments
• Remove all use of XHTML
• Lots of coding standards cleanup
• API docs are now auto-updated via GitHub actions
• Fix header separation bug created in 6.1.1
• Fix misidentification of background attributes in SVG images in msgHTML

Version 6.1.1 (September 27th 2019)

• Fix misordered version tag

Version 6.1.0 (September 27th 2019)

• Multiple bug fixes for folding of long header lines, thanks to @caugner
• Add support for RFC2387 child element content-type hint in multipart/related structures.
• Support for Ical event methods other than REQUEST, thanks to @puhr-mde
• Change header folding and param separation to use spaces instead of tabs
• Use ; to separate multiple MIME header params
• Add support for RFC3461 DSN messages
• IMAP example code fixed

... (truncated)

• c2796cb Merge pull request from GHSA-f7hx-fqxw-rvvj
• a7f1b23 Add funding info
• 5b63b39 Fix typos (#2037)
• c1c38e3 Correct Armenian language code
• a12c95e Use correct timeout property in debug output, clarify debug output, see #2018
• a8bf068 6.1.5
• 2e72725 Rewrite and extension of translation (#1989)
• 55e0b34 Fix issue #2008 - MS Outlook corrupts formatting multipart EML files (#2009)
• a55152f Typo fix for #2007
• e9710ee Update README.md (#2004)
• Additional commits viewable in compare view

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