Descrizione
Safe SVG è il miglior modo per autorizzare il caricamento di file SVG in WordPress!
Ti permette di abilitare il caricamento di file SVG, assicurandosi al tempo stesso che vengano sanificati per fermare le vulnerabilità SVG/XML che potrebbero colpire il tuo sito. Ti permette anche di visualizzare anteprime degli SVG caricati nella libreria dei media in tutte le modalità di visualizzazione.
Funzionalità attuali
- SVG sanificati – Non aprire falle di sicurezza nel tuo sito WordPress consentendo il caricamento di file non sanificati.
- SVGO Optimisation – Runs your SVGs through the SVGO tool on upload to save you space. This feature is disabled by default but can be enabled by adding the following code:
add_filter( 'safe_svg_optimizer_enabled', '__return_true' ); - Visualizza gli SVG nella libreria dei media – I giorni in cui dovevi indovinare quale SVG fosse quello giusto sono finiti, abiliteremo le anteprime SVG nella libreria dei media di WordPress.
- Scegli chi è autorizzato a caricare – Restringi il caricamento di SVG ad alcuni utenti sul tuo sito WordPress o permetteti a tutti di caricarli.
Inizialmente una prova di fattibilità per #24251.
La sanificazione dei file SVG è realizzata attraverso la seguente libreria: https://github.com/darylldoyle/svg-sanitizer.
L’ottimizzazione dei file SVG è realizzata attraverso la seguente libreria: https://github.com/svg/svgo.
Technical: Upload Path Security
WordPress’s _wp_handle_upload( $file, $action ) function allows any $action value, which determines the filter hook name: {$action}_prefilter. Safe SVG hooks common actions like wp_handle_upload and wp_handle_sideload, but cannot hook arbitrary custom actions defined by third-party code. Since upload actions are unbounded and MIME allowances are global, we cannot guarantee sanitization coverage across all possible upload paths.
Blocchi
Questo plugin fornisce 1 blocco.
- Safe SVG Display the SVG icon
Installazione
Installa attraverso la directory di WordPress o scarica, decomprimi e carica i file nella tua directory /wp-content/plugins/
FAQ
-
Sì, questo può essere fatto usando i filtri
svg_allowed_attributesesvg_allowed_tags.
Accettano un argomento che deve essere restituito. Vedi più sotto per degli esempi: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; } ); -
Can my theme style an inline SVG?
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Mostly, yes. The Inline SVG block renders an SVG that carries its own
<style>element inside a shadow root, because CSS inside an inline SVG is otherwise applied to the whole page rather than just the SVG. Stylesheets cannot reach into a shadow root, so theme CSS such as.entry-content svg { fill: red; }will not apply to those SVGs.Inherited properties still cross the boundary, so setting
coloron an ancestor and usingcurrentColorinside the SVG works, as do CSS custom properties. SVGs that do not contain a<style>element are rendered without the shadow root and can be styled by theme stylesheets.To turn isolation off, at the cost of allowing an SVG’s CSS to affect the rest of the page:
add_filter( 'safe_svg_inline_use_shadow_dom', '__return_false' ); -
Why doesn’t Safe SVG globally enable SVG uploads?
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Safe SVG only allows SVGs through upload paths it can actively sanitize. While most WordPress uploads use standard functions like
wp_handle_upload()(which Safe SVG hooks), plugins and themes can create custom upload paths by calling WordPress’s underlying_wp_handle_upload()function with arbitrary action parameters.Globally enabling the
image/svg+xmlMIME type would allow SVGs through all upload paths—including custom ones Safe SVG cannot intercept and sanitize. This would create security vulnerabilities where unsanitized SVGs containing malicious scripts could be uploaded.This is a deliberate design decision: Safe SVG prioritizes guaranteed sanitization over broad compatibility. SVGs are only allowed when we can ensure they’re safe.
-
Where do I report security bugs found in this plugin?
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Please report security bugs found in the source code of the Safe SVG plugin through the Patchstack Vulnerability Disclosure Program. The Patchstack team will assist you with verification, CVE assignment, and notify the developers of this plugin.
Recensioni
Contributi e sviluppo
“Safe SVG” è un software open source. Le persone che hanno contribuito allo sviluppo di questo plugin sono indicate di seguito.
Collaboratori
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Changelog
2.5.1 – 2026-09-22
- Added: New REST endpoint,
/safe-svg/v1/svg/ATTACHMENT-ID, that can be passed an attachment ID for an SVG and will return sanitized markup (props @dkotter, @peterwilsoncc via GHSA-3hhm-5qc9-q4xf). - Removed: Remove the
$sanitizerproperty from thesafe_svgclass. If you directly use thesafe_svgclass in order to access the$sanitizerproperty, you’ll need to update your code to instead use the newSvg_Sanitizerclass (props @dkotter, @peterwilsoncc via GHSA-3hhm-5qc9-q4xf). - Security: Resolve GHSA-qq4c-2xh7-x2wf (props @dhakalananda, @dkotter, @peterwilsoncc, @darylldoyle, @jeffpaul via GHSA-qq4c-2xh7-x2wf).
- Security: Resolve GHSA-vcfp-vw5v-gc9c (props @spectreDeveloper, @dkotter, @peterwilsoncc, @darylldoyle, @jeffpaul via GHSA-vcfp-vw5v-gc9c).
- Security: Resolve GHSA-3hhm-5qc9-q4xf (props @dkotter, @peterwilsoncc via GHSA-3hhm-5qc9-q4xf).
2.5.0 – 2026-09-07
- Security: Prevented direct access of PHP files (props @mehrazmorshed, @dkotter via #300).
- Security: The Inline SVG block now renders SVGs that carry their own
<style>element inside a shadow root, so their CSS is scoped to the block instead of applying to the whole page (props @darylldoyle, @dkotter, @jeffpaul, @peterwilsoncc via #328). - Security: Bump
enshrined/svg-sanitizefrom^0.22.0to^1.0.0to pull in security fixes (props @dkotter, @jeffpaul, @peterwilsoncc via #327). - Added: Link support for the SVG Inline block, including URL input, new tab toggle, and nofollow/sponsored rel options (props @vegetable-bits, @mgiannopoulos24, @jeffpaul, @thrijith, @peterwilsoncc, @dkotter, @pbiron via #315).
- Added: New
safe_svg_inline_use_shadow_domfilter to control which inline SVGs are isolated in a shadow root, and newsafe_svg_inline_shadow_stylesfilter to adjust the CSS injected alongside them (props @darylldoyle, @dkotter, @jeffpaul, @peterwilsoncc via #328). - Added: New
safe_svg_remove_remote_referencesfilter to strip remoteurl(),@importandimage-set()references, along with remotehreftargets, from uploaded SVGs. Off by default, because legitimate SVGs reference remote fonts and images but use this filter to turn it on (props @darylldoyle, @dkotter, @jeffpaul, @peterwilsoncc via #328). - Added: Added support for Enable Media Replace plugin (props @gthayer, @jeffpaul, @peterwilsoncc via #285).
- Changed: Bump WordPress minimum supported version to 6.9 (props @zamanq, @peterwilsoncc via #320).
- Changed: Bump “tested up to header” to indicate WordPress 7.1 support (props @navi151, @peterwilsoncc, @dkotter, @jeffpaul, @zamanq via #290, #311, #320).
- Changed: Theme CSS can no longer target an inline SVG that carries its own
<style>element, because stylesheets cannot reach into a shadow root. Style those SVGs from within the SVG itself, or opt out with thesafe_svg_inline_use_shadow_domfilter. Inherited properties, includingcolor/currentColorand custom properties, still apply as before, and SVGs without a<style>element are unaffected (props @darylldoyle, @dkotter, @jeffpaul, @peterwilsoncc via #328). - Changed: Updated blueprint file for WordPress.org live previews (props @fellyph, @jeffpaul, @peterwilsoncc via #287).
- Changed: Bump
svgofrom 3.2.0 to 3.3.5 (props @dependabot[bot], @jeffpaul, @peterwilsoncc, @dependabot via #309).
2.4.0 – 2025-09-22
- Added: Ability to upload SVGs from more admin locations (props @stormrockwell, @darylldoyle, @wpexplorer, @smerriman, @jeffpaul, @dkotter via #279).
- Changed: Added
$attachment_idargument to filterssafe_svg_use_width_height_attributesandsafe_svg_dimensions(props @roborourke, @dkotter via #278). - Fixed: Inconsistent or incorrect data type for
$svgargument in the filterssafe_svg_use_width_height_attributesandsafe_svg_dimensions(props @roborourke, @dkotter via #278).