Sourced from league/commonmark's releases.

2.7.0

This is a security release to address a potential cross-site scripting (XSS) vulnerability when using the AttributesExtension with untrusted user input.

Added

• Added attributes/allow config option to specify which attributes users are allowed to set on elements (default allows virtually all attributes)

Changed

• The AttributesExtension blocks all attributes starting with on unless explicitly allowed via the attributes/allow config option
• The allow_unsafe_links option is now respected by the AttributesExtension when users specify href and src attributes

2.6.2

Fixed

• Fixed Attributes extension parsing regression (#1071)

Other Changes

• fix incorrect interface in docs v2.6 by @​CharrafiMed in thephpleague/commonmark#1063
• docs/2.6/extensions/front-matter.md: add missing newline by @​DanielEScherzer in thephpleague/commonmark#1069

New Contributors

• @​CharrafiMed made their first contribution in thephpleague/commonmark#1063
• @​DanielEScherzer made their first contribution in thephpleague/commonmark#1069

Full Changelog: https://github.com/thephpleague/commonmark/compare/2.6.1...2.6.2

Sourced from league/commonmark's changelog.

[2.7.0]

This is a security release to address a potential cross-site scripting (XSS) vulnerability when using the AttributesExtension with untrusted user input.

Added

• Added attributes/allow config option to specify which attributes users are allowed to set on elements (default allows virtually all attributes)

Changed

• The AttributesExtension blocks all attributes starting with on unless explicitly allowed via the attributes/allow config option
• The allow_unsafe_links option is now respected by the AttributesExtension when users specify href and src attributes

[2.6.2] - 2025-04-18

Fixed

• Fixed Attributes extension parsing regression (#1071)

• 6fbb36d Prepare to release 2.7.0
• f0d626c Merge commit from fork
• 4320725 Fix XSS in AttributesExtension
• d4b08b8 Create 2.7 branch
• 5b794e1 Remove docs for 1.0 - 1.5
• 3db9d35 Merge branch '2.6'
• 06c3b0b Prepare to release 2.6.2
• 771974c Fix Attributes extension parsing regression (#1071)
• e99ee2e Merge pull request #1069 from DanielEScherzer/patch-1
• f356ca5 docs/2.6/extensions/front-matter.md: add missing newline
• Additional commits viewable in compare view

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