diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ed9b5a3c28..ad338405277 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 * Support `use:obj.method` as actions ([#3935](https://github.com/sveltejs/svelte/issues/3935))
 * Support `_` as numeric separator ([#5407](https://github.com/sveltejs/svelte/issues/5407))
 * Fix assignments to properties on store values ([#5412](https://github.com/sveltejs/svelte/issues/5412))
+* Add special style scoping handling of `[open]` selectors on `<details>` elements ([#5421](https://github.com/sveltejs/svelte/issues/5421))
 * Support `import.meta` in template expressions ([#5422](https://github.com/sveltejs/svelte/issues/5422))
 
 ## 3.25.1
diff --git a/src/compiler/compile/css/Selector.ts b/src/compiler/compile/css/Selector.ts
index d18a7e7ba62..c45cda57e96 100644
--- a/src/compiler/compile/css/Selector.ts
+++ b/src/compiler/compile/css/Selector.ts
@@ -11,6 +11,10 @@ enum BlockAppliesToNode {
 	UnknownSelectorType
 }
 
+const whitelist_attribute_selector = new Map([
+	['details', new Set(['open'])]
+]);
+
 export default class Selector {
 	node: CssNode;
 	stylesheet: Stylesheet;
@@ -232,7 +236,11 @@ function block_might_apply_to_node(block: Block, node: Element): BlockAppliesToN
 		}
 
 		else if (selector.type === 'AttributeSelector') {
-			if (!attribute_matches(node, selector.name.name, selector.value && unquote(selector.value), selector.matcher, selector.flags)) return BlockAppliesToNode.NotPossible;
+			if (
+				!(whitelist_attribute_selector.has(node.name.toLowerCase()) && whitelist_attribute_selector.get(node.name.toLowerCase()).has(selector.name.name.toLowerCase())) &&
+				!attribute_matches(node, selector.name.name, selector.value && unquote(selector.value), selector.matcher, selector.flags)) {
+				return BlockAppliesToNode.NotPossible;
+			}
 		}
 
 		else if (selector.type === 'TypeSelector') {
diff --git a/test/css/samples/attribute-selector-details-open/expected.css b/test/css/samples/attribute-selector-details-open/expected.css
new file mode 100644
index 00000000000..20543c5c8e0
--- /dev/null
+++ b/test/css/samples/attribute-selector-details-open/expected.css
@@ -0,0 +1 @@
+details[open].svelte-xyz{color:red}
\ No newline at end of file
diff --git a/test/css/samples/attribute-selector-details-open/input.svelte b/test/css/samples/attribute-selector-details-open/input.svelte
new file mode 100644
index 00000000000..f8cb70eff7d
--- /dev/null
+++ b/test/css/samples/attribute-selector-details-open/input.svelte
@@ -0,0 +1,7 @@
+<details>Hello</details>
+
+<style>
+	details[open] {
+		color: red;
+	}
+</style>