Safe SVG
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April 05, 2023

Safe SVG Plugin

Enable SVG uploads and sanitize them to stop XML/SVG vulnerabilities in your WordPress website

Safe SVG is the best way to Allow SVG Uploads in WordPress!

It gives you the ability to allow SVG uploads whilst making sure that they’re sanitized to stop SVG/XML vulnerabilities affecting your site. It also gives you the ability to preview your uploaded SVGs in the media library in all views.

Current Features

  • Sanitised SVGs – Don’t open up security holes in your WordPress site by allowing uploads of unsanitised files.
  • View SVGs in the Media Library – Gone are the days of guessing which SVG is the correct one, we’ll enable SVG previews in the WordPress media library.

Features on the Roadmap

  • SVGO Optimisation – You’ll have the option to run your SVGs through our SVGO server on upload to save you space.
  • Choose Who Can Upload – Restrict SVG uploads to certain users on your WordPress site or allow anyone to upload.

Initially a proof of concept for #24251.

SVG Sanitization is done through the following library: https://github.com/darylldoyle/svg-sanitizer.

Installation

Install through the WordPress directory or download, unzip and upload the files to your /wp-content/plugins/ directory

FAQ

Can we change the allowed attributes and tags?

Yes, this can be done using the svg_allowed_attributes and svg_allowed_tags filters.
They take one argument that must be returned. See below for examples:

add_filter( 'svg_allowed_attributes', function ( $attributes ) { // Do what you want here... // This should return an array so add your attributes to // to the $attributes array before returning it. E.G. $attributes[] = 'target'; // This would allow the target="" attribute. return $attributes; } ); add_filter( 'svg_allowed_tags', function ( $tags ) { // Do what you want here... // This should return an array so add your tags to // to the $tags array before returning it. E.G. $tags[] = 'use'; // This would allow the <use> element. return $tags; } );

Changelog

2.1.1 – 2023-04-05

2.1.0 – 2023-03-22

2.0.3 – 2022-09-01

2.0.2 – 2022-06-27

2.0.1 – 2022-04-19

2.0.0 – 2022-04-06

  • Added: New filter, safe_svg_use_width_height_attributes, that can be used to change the order of attributes we use to determine the SVG dimensions (props @dkotter, @peterwilsoncc).
  • Changed: Documentation updates (props @j-hoffmann, @jeffpaul, @Zodiac1978).
  • Fixed: Use the viewBox attributes first for image dimensions. Ensure we don’t use image dimensions that end with percent signs (props @dkotter, @peterwilsoncc).
  • Fixed: Make sure we use the full size SVG dimensions rather than the requested size, to avoid wrong sizes being used and duplicate height and width attributes (props @dkotter, @cadic).
  • Fixed: Ensure the tmp_name and name properties exist before we use them (props @dkotter, @aksld).

1.9.10 – 2022-02-23

Note that this release bumps the WordPress minimum version from 4.0 to 4.7 and the PHP minimum version from 5.6 to 7.0.

1.9.9 – 2020-05-07

  • Fixed: Issue where 100% width is accidentally converted to 100px width (props @joehoyle).

1.9.8 – 2020-05-07

  • Changed: Underlying library update.

1.9.7 – 2019-12-10

  • Changed: Underlying library update.

1.9.6 – 2019-11-07

  • Security: Underlying library update that fixes a security issue.

1.9.5 – 2019-11-04

  • Security: Underlying library update that fixes some security issues.

1.9.4 – 2019-08-21

  • Fixed: Bug causing lots of error log output to do with safe_svg::fix_direct_image_output().

1.9.3 – 2019-02-19

  • Fixed: Bug causing 0 height and width SVGs.

1.9.2 – 2019-02-14

  • Fixed: Warning about an Illegal string offset.
  • Fixed: Issue if something other than a WP_Post object is passed in via the wp_get_attachment_image_attributes filter.

1.9.1 – 2019-01-29

  • Fixed: Warning that was being generated by a change made in 1.9.0.

1.9.0 – 2019-01-03

  • Changed: If an image is the correct ratio, allow skipping of the crop popup when setting header/logo images with SVGs.

1.8.1 – 2018-11-22

  • Changed: Don’t let errors break upload if uploading an empty file
  • Fixed: Featured image display in Gutenberg. Props @dmhendricks 🙂

1.8.0 – 2018-11-04

  • Added: Pull SVG dimensions from the width/height or viewbox attributes of the SVG.
  • Added: role=”img” attribute to SVGs.

1.7.1 – 2018-10-01

  • Changed: Underlying lib and added new filters for filtering allowed tags and attributes.

1.7.0 – 2018-10-01

  • Added: Allow devs to filter tags and attrs within WordPress.

1.6.1 – 2018-03-17

  • Changed: Images will now use the size chosen when inserted into the page rather than default to 2000px everytime.

1.6.0 – 2017-12-20

  • Added: Fairly big new feature – The library now allows <use> elements as long as they don’t reference external files!
  • Fixed: You can now also embed safe image types within the SVG and not have them stripped (PNG, GIF, JPG).

1.5.3 – 2017-11-16

  • Fixed: 1.5.2 introduced an issue that can freeze the media library. This fixes that issue. Sorry!

1.5.2 – 2017-11-15

  • Changed: Tested with 4.9.0.
  • Fixed: Issue with SVGs when regenerating media.

1.5.1 – 2017-08-21

  • Fixed: PHP strict standards warning.

1.5.0 – 2017-06-20

  • Changed: Library update.
  • Changed: role, aria- and data- attributes are now whitelisted to improve accessibility.

1.4.5 – 2017-06-18

  • Changed: Library update.
  • Fixed: some issues with defining the size of an SVG.

1.4.4 – 2017-06-07

  • Fixed: SVGs now display as featured images in the admin area.

1.4.3 – 2017-03-06

  • Added: WordPress 4.7.3 Compatibility.
  • Changed: Expanded SVG previews in media library.

1.4.2 – 2017-02-26

  • Added: Check / fix for when mb_* functions are not available.

1.4.1 – 2017-02-23

  • Changed: Underlying library to allow attributes/tags in all case variations.

1.4.0 – 2017-02-21

  • Added: Ability to preview SVG on both grid and list view in the wp-admin media area
  • Changed: Underlying library version.

1.3.4 – 2017-02-20

  • Fixed: SVGZ uploads failing and not sanitising correctly.

1.3.3 – 2017-02-15

  • Changed: Allow SVGZ uploads.

1.3.2 – 2017-01-27

1.3.1 – 2016-12-01

  • Changed: Underlying library version.

1.3.0 – 2016-10-10

  • Changed: Minify SVGs after cleaning so they can be loaded correctly through file_get_contents.

1.2.0 – 2016-02-27

  • Added: Support for camel case attributes such as viewBox.

1.1.1 – 2016-07-06

  • Fixed: Issue with empty svg elements self-closing.

1.1.0 – 2015-07-04

  • Added: I18n.
  • Added: da, de ,en, es, fr, nl and ru translations.
  • Fixed: Issue with filename not being pulled over on failed uploads.

1.0.0 – 2015-07-03

  • Initial Release.
Download

Details

  • Version: 2.1.1
  • Active installations: 800,000
  • WordPress Version: 5.7
  • Tested up to: 6.2
  • PHP Version: 7.4

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