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Ticket Summary Owner Workflow Priority Severity Milestone Type Modified Comments
#52100 Include highlight.js in core for syntax highlighting for codeblocks in markdown normal major Awaiting Review feature request 12/31/2020 1
#57909 It's not logical that the "Read more"-button disappears when you create a manual excerpt close normal normal Awaiting Review feature request 03/14/2023 5
#63192 wptexturize add filter for disable some replacement has-patch normal normal Awaiting Review feature request 04/10/2025 4
#30644 "wpautop" Enhancements dev-feedback normal normal enhancement 08/11/2020 5
#54322 Add Logical Properties to safecss_filter_attr dev-feedback normal normal Awaiting Review enhancement 11/19/2021 3
#18330 Add a Class functionality to wpautop() has-patch normal normal enhancement 07/25/2023 6
#63046 Add background-clip to the safe_style_css filter has-patch normal normal Awaiting Review enhancement 03/05/2025 6
#47594 Add nbsp symbol codes to convert throught sanitize_title SergeyBiryukov* has-patch normal minor Future Release enhancement 10/28/2021 22
#52444 Add support for Telegram Messenger Protocol close normal normal Awaiting Review enhancement 02/05/2021 4
#51707 Add white-space as an allowed kses CSS attribute. has-patch normal normal 6.9 enhancement 07/05/2025 3
#63036 Additional unit tests kses color-mix has-patch normal trivial Awaiting Review enhancement 02/28/2025 1
#60544 Allow individual blocks to be excluded from `excerpt_remove_blocks()` has-patch normal normal Awaiting Review enhancement 10/09/2024 1
#43010 Attribute Name Escape needs-unit-tests normal normal Awaiting Review enhancement 01/18/2022 7
#41458 Class gets stripped out when inserting a link in author biography box normal normal Awaiting Review enhancement 07/30/2017 1
#39724 Defining custom validation callbacks for tag/attribute values in wp_kses() normal normal Awaiting Review enhancement 06/17/2017 1
#57517 Expose MutationObserver instance in wpEmoji has-patch normal normal Awaiting Review enhancement 01/20/2023 2
#43224 Extract `$utf8_pcre` from `wp_check_invalid_utf8()` into a separate function normal normal Awaiting Review enhancement 01/16/2019 3
#63156 Formatting: Expand sanitize_html_class() to support the full range of CDATA that a class attribute can contain has-patch normal normal Awaiting Review enhancement 03/24/2025 1
#26868 Function 'make_clickable()' doesn't make hyperlinks from explicit URLs using the `mailto:`, `tel:` and other schemes that do not start with `//` needs-unit-tests normal normal enhancement 06/04/2019 2
#24225 Improve regular expressions when matching attributes miqrogroove needs-unit-tests normal normal enhancement 06/04/2019 19
#40933 Improvements for get_file_data() function has-patch normal normal Awaiting Review enhancement 07/18/2017 5
#44906 Include greek accent characters on "remove_accents" function dev-feedback normal minor Awaiting Review enhancement 09/13/2018 3
#49129 Incorrect German Umlaut substitutions dev-feedback normal minor Awaiting Review enhancement 01/04/2020 3
#43147 Introduce `esc_html_comment` and translation related functions dev-feedback normal normal Awaiting Review enhancement 01/16/2019 7
#19100 Introduce esc_color() dev-feedback normal normal Future Release enhancement 03/04/2020 17
#61501 KSES Allow more custom data attributes to align with browsers has-patch normal normal 6.9 enhancement 02/27/2025 7
#28607 Make wpautop()'s $allblocks variable filterable close normal normal Awaiting Review enhancement 06/05/2025 8
#30531 Make wptexturize the last filter before output azaozz normal normal enhancement 06/04/2019 3
#35201 Mobile email validation normal normal Awaiting Review enhancement 02/06/2017 3
#56774 Need more options on pre-existing blocks. normal normal Awaiting Review enhancement 10/09/2022
#41422 Need replace_filter() function for improved Just In Time filter adjusment normal normal Awaiting Review enhancement 08/03/2017 6
#26759 New Generic Sanitize Functions for Core dev-feedback normal normal enhancement 06/04/2019 3
#22330 Optimize regexes to remove protocol from URL needs-unit-tests normal normal enhancement 07/08/2025 2
#60319 PHPUnit test for wp_spaces_regexp has-patch normal normal Future Release enhancement 02/12/2025 2
#60300 PHPunit Test for wp_staticize_emoji_for_email has-patch normal normal Future Release enhancement 02/12/2025 4
#60301 PHPunit test for print_emoji_detection_script has-patch normal normal Awaiting Review enhancement 02/12/2025 4
#60842 PHPunit tests for wp_check_invalid_utf8 has-patch normal normal Awaiting Review enhancement 02/12/2025 14
#62738 Proposal for format_atts() normal normal Awaiting Review enhancement 12/26/2024 2
#47557 Sanitize Email Suggestion has-patch normal minor Awaiting Review enhancement 09/11/2024 3
#61298 Slight UI bug when applying shadow on the lightbox normal trivial Awaiting Review enhancement 04/29/2025 2
#39636 Smilies not converted when directly followed by punctuation marks dev-feedback normal normal Future Release enhancement 04/11/2022 4
#53709 Spaces as <br> in RSS Excerpts normal normal Awaiting Review enhancement 07/25/2021 1
#39674 Special characters are encoded in the database, for site settings options normal normal Awaiting Review enhancement 01/24/2017
#22402 Stripping non-alphanumeric multi-byte characters from slugs dev-feedback normal normal Awaiting Review enhancement 06/27/2025 1
#52886 Update esc_url to allow for specifying an https:// as default protocol has-patch normal normal Future Release enhancement 07/10/2025 13
#55962 Upgrade `sanitize_hex_color()` to CSS Color Level 4 pbearne dev-feedback normal normal Future Release enhancement 01/17/2024 10
#56120 WordPress should add a space character on every possible "wrap point" in a post title when building "html title", "og:title" and so on dev-feedback normal normal Awaiting Review enhancement 07/05/2022 2
#43156 _walk_bookmarks(): please add the link id as HTML id attribute. normal normal Awaiting Review enhancement 01/24/2018
#56663 `tag_escape()` does not follow naming convention. normal normal Awaiting Review enhancement 09/27/2022 2
#12084 allow preserving HTML in the_excerpt (specify allowed tags for strip_tags in wp_trim_excerpt) has-patch normal normal enhancement 06/04/2019 2
#25856 debug of wpautop function with Unit Tests normal normal enhancement 03/20/2024 20
#29910 esc_attr does not properly deal with json_encode normal normal Awaiting Review enhancement 05/07/2017 2
#46188 esc_html does not have support for multiline output. esc_br_html or line-breaking parameter for esc_html is missing has-patch normal normal Awaiting Review enhancement 02/27/2025 6
#33204 kses $allowedposttags should support microdata normal normal Awaiting Review enhancement 11/15/2018 4
#32787 make_clickable filter johnjamesjacoby has-patch normal normal Future Release enhancement 01/28/2025 17
#40569 next_post_link parameters $format and $link, have default values that produce awkward to use output normal normal Awaiting Review enhancement 04/26/2017
#46329 sanitize_text_field after 5.1 update should account for __toString() methods normal normal Awaiting Review enhancement 02/24/2019 1
#29717 wp_check_invalid_utf8 - pcre tricks and failsafes, +mb_convert_encoding, iconv fix, performance pbearne dev-feedback normal normal Awaiting Review enhancement 05/15/2024 27
#51482 wp_kses_post should filter javascript content as well as the <script> tags normal minor Awaiting Review enhancement 10/08/2020
#48261 "noopener noreferrer" mis-parses links with "rel=" parameters has-patch normal normal Awaiting Review defect (bug) 10/09/2019 6
#57235 'excerpt_remove_blocks' removes list blocks has-patch normal normal Awaiting Review defect (bug) 11/30/2022 1
#51287 Administrators & Editors can't create localfile links in a multisite installation normal major Awaiting Review defect (bug) 09/24/2020 1
#56531 Aiming to “kill” entities, `sanitize_title_with_dashes()` happens to eat content normal major Awaiting Review defect (bug) 09/25/2022 5
#57713 Alignment on "You appear to be making direct edits to... ..." CTA reporter-feedback normal minor Awaiting Review defect (bug) 02/14/2023 2
#59158 Altering Details block styles doubling .wp-block-details class in the output normal normal Awaiting Review defect (bug) 08/21/2023 1
#60191 Ampersand in non-entities such as &a; is not escaped normal normal Awaiting Review defect (bug) 02/27/2024
#43810 Apostrophe issue normal normal Awaiting Review defect (bug) 05/12/2025 4
#10823 Bad handling of ampersand in post titles has-patch normal normal defect (bug) 06/04/2019 17
#41304 Bad protocol sanitization in KSES for URLs NOT RFC 3986 compliant normal normal Awaiting Review defect (bug) 07/13/2017 1
#39153 Bug in wp_html_split with unclosed PHP tag (or HTML tag <) needs-unit-tests normal normal Awaiting Review defect (bug) 03/02/2018 9
#33553 Bug with Linebreak before figcaption, fixed and then revert to make a fix elsewhere normal normal defect (bug) 06/04/2019
#48873 CSS Selectors in style tags containing greater than signs are escaped normal normal Awaiting Review defect (bug) 12/04/2019
#40552 Calling wp_parse_args() early, with $args as empty string, may cause fatal error dev-feedback normal normal Awaiting Review defect (bug) 11/01/2024 2
#15006 Closing tag for empty <p> tag is removed normal minor defect (bug) 06/04/2019 13
#56530 Combining tilde passes `sanitize_title_with_dashes()` and so do most other diacritics normal major Awaiting Review defect (bug) 09/08/2022 3
#26842 Contenteditable, multiple spaces, &nbsp, and U+00A0 needs-unit-tests normal normal Future Release defect (bug) 09/04/2020 38
#62156 Defining custom colors in styles color palette removes other colors from palette in several block editor places normal major Awaiting Review defect (bug) 10/02/2024
#21537 Email address sanitisation mangles valid email addresses dev-feedback normal normal defect (bug) 10/23/2022 9
#30039 Email validation not working correctly normal normal defect (bug) 06/04/2019 2
#31695 Enclosing oEmbed using `embed_oembed_html` is generating invalid HTML needs-unit-tests normal normal defect (bug) 06/04/2019 16
#56709 Encountered a problem that no one has ever met Please help me dev-feedback normal normal Awaiting Review defect (bug) 08/08/2023 4
#62417 Excerpts don't include content from list-item blocks. has-patch normal normal Awaiting Review defect (bug) 05/12/2025 2
#57381 Filter wptexturize brokes tailwindcss brackets reporter-feedback normal normal Awaiting Review defect (bug) 05/28/2024 7
#63379 Fix for deprecated rtrim passing null to parameter dev-feedback normal normal Awaiting Review defect (bug) 06/07/2025 11
#36124 Format: Aside next to an embedded video, removes player and only displays URL normal normal defect (bug) 06/04/2019
#43155 Formatting bug with ampasands - WooCommerce Layered Nav normal normal Awaiting Review defect (bug) 01/24/2018
#40045 HTML code entered using "Text" mode gets garbled normal normal Awaiting Review defect (bug) 03/06/2017
#2691 HTML comments in posts aren't handled properly. needs-unit-tests normal normal Future Release defect (bug) 03/17/2025 35
#49217 HTML error with the multi-level list in Classic Editor normal normal Awaiting Review defect (bug) 01/17/2020 1
#34994 HTML5 elements reformatted poorly switching between Visual & Text editors normal normal defect (bug) 06/04/2019 1
#61595 Hyphenation problem in Dutch language reporter-feedback normal normal Awaiting Review defect (bug) 07/08/2024 1
#25021 Improve sanitize_title_with_dashes % removal dev-feedback normal normal defect (bug) 07/01/2025 13
#52463 Inline SVG - foreignObject support dev-feedback normal normal Awaiting Review defect (bug) 02/09/2021 1
#27350 Invalid HTML Output has-patch normal normal Future Release defect (bug) 08/13/2024 37
#47973 Invalid HTML output from image_caption + wpautop combination normal normal Awaiting Review defect (bug) 07/11/2020 2
#62038 Issue with is_email() and sanitize_email() has-patch normal normal Awaiting Review defect (bug) 09/24/2024 3
#59056 LOST Formatting/Settings when Live Site is copied to Staging or Cloned normal normal Awaiting Review defect (bug) 08/21/2023 4
#32193 Large (custom) resolution emoticons are being shrunk to 12x12 normal normal defect (bug) 06/04/2019 9
#17491 Make is_email() compliant with RFC5322 (updated by RFC6854) needs-unit-tests normal minor Future Release defect (bug) 08/21/2024 33
#16495 Make iso8601_to_datetime a bit more compliant normal normal defect (bug) 06/04/2019 4
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