[MediaWiki-announce] Security and maintenance release: 1.31.13 / 1.35.2

I would like to announce the release of MediaWiki 1.31.13 and 1.35.2! These releases also serve as a maintenance release for these branches. Numerous fixes have been backported into 1.35, including some for PHP 8.0 support (though we are not declaring full PHP 8.0 support yet). This is the first MediaWiki release where zip files are included too. This is due to some issues with the tarballs for some users with certain extraction applications. Composer 2.0 is also now supported on MediaWiki 1.35.2. MediaWiki also has a new logo as of these releases. T270453 does not apply to MediaWiki 1.31.13, as VisualEditor is not bundled. However the patch will be backported to the 1.31 branch if you use VisualEditor, and you should pick up the update from the usual places. T279451 also does not apply to MediaWiki 1.31.13, as Parsoid is not bundled. If you use the node.js service, it is recommended to update this. T276843 has been fixed in different ways on MediaWiki 1.31.13 and MediaWiki 1.35.2. On the former, we have just disabled the known vulnerable lexers. On 1.35.2, we have upgraded pygments from 2.5.2 to 2.7.4. While tarballs have already been uploaded, git tags will follow later on today. An "MediaWiki Extensions Security Release Supplement" email will follow this one. == Security fixes == * (T270453, CVE-2021-30153) SECURITY: ApiVisualEditor leaks info about hidden users. * (T270713, CVE-2021-30152) SECURITY: Allow user to only apply protection they have right to do so via action=protect. * (T270988, CVE-2021-30155) SECURITY: ContentModelChange: Check that user can create pages. * (T272386, CVE-2021-30159) SECURITY: Non-admin deleted enwiki page in fast double move. * (T276843, CVE-2021-20270, CVE-2021-27291) SECURITY: Various SyntaxHighlight lexers are vulnerable to DoS. * (T277009, CVE-2021-30158) SECURITY: Allow blocked users to access Special:ResetTokens. * (T278014, CVE-2021-30154) SECURITY: Escape mediastatistics-header-* messages on Special:NewFiles. * (T278058, CVE-2021-30157) SECURITY: Escape rcfilters-filter-* messages onChangesList pages. * (T279451, CVE-2021-30458) SECURITY: Parsoid comment fostering allows for inserting mostly arbitrary <meta> tags. == Links to all mentioned tasks == * https://phabricator.wikimedia.org/T270453 * https://phabricator.wikimedia.org/T270713 * https://phabricator.wikimedia.org/T270988 * https://phabricator.wikimedia.org/T272386 * https://phabricator.wikimedia.org/T276843 * https://phabricator.wikimedia.org/T277009 * https://phabricator.wikimedia.org/T278014 * https://phabricator.wikimedia.org/T278058 * https://phabricator.wikimedia.org/T279451 == Release notes == Full release notes for 1.31.13: https://phabricator.wikimedia.org/diffusion/MW/browse/REL1_31/RELEASE-NOTES… https://www.mediawiki.org/wiki/Release_notes/1.31 Full release notes for 1.35.2: https://phabricator.wikimedia.org/diffusion/MW/browse/REL1_35/RELEASE-NOTES… https://www.mediawiki.org/wiki/Release_notes/1.35 For information about how to upgrade, see <https://www.mediawiki.org/wiki/Manual:Upgrading> ********************************************************************** Download: https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.tar.gz https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.zip Download without bundled extensions: https://releases.wikimedia.org/mediawiki/1.31/mediawiki-core-1.31.13.tar.gz https://releases.wikimedia.org/mediawiki/1.31/mediawiki-core-1.31.13.zip Patch to previous version (1.31.12): https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.patch.gz https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.patch.zip GPG signatures: https://releases.wikimedia.org/mediawiki/1.31/mediawiki-core-1.31.13.tar.gz… https://releases.wikimedia.org/mediawiki/1.31/mediawiki-core-1.31.13.zip.sig https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.tar.gz.sig https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.zip.sig https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.patch.gz.sig https://releases.wikimedia.org/mediawiki/1.31/mediawiki-1.31.13.patch.zip.s… Public keys: https://www.mediawiki.org/keys/keys.html ********************************************************************** Download: https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.tar.gz https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.zip Download without bundled extensions: https://releases.wikimedia.org/mediawiki/1.35/mediawiki-core-1.35.2.tar.gz https://releases.wikimedia.org/mediawiki/1.35/mediawiki-core-1.35.2.zip Patch to previous version (1.35.1): https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.patch.gz https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.patch.zip GPG signatures: https://releases.wikimedia.org/mediawiki/1.35/mediawiki-core-1.35.2.tar.gz.… https://releases.wikimedia.org/mediawiki/1.35/mediawiki-core-1.35.2.zip.sig https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.tar.gz.sig https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.zip.sig https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.patch.gz.sig https://releases.wikimedia.org/mediawiki/1.35/mediawiki-1.35.2.patch.zip.sig Public keys: https://www.mediawiki.org/keys/keys.html