diff --git a/src/wp-includes/html-api/class-wp-html-tag-processor.php b/src/wp-includes/html-api/class-wp-html-tag-processor.php
index fcf418e856d5e..0ff2cdc4dd10d 100644
--- a/src/wp-includes/html-api/class-wp-html-tag-processor.php
+++ b/src/wp-includes/html-api/class-wp-html-tag-processor.php
@@ -614,7 +614,7 @@ class WP_HTML_Tag_Processor {
 	 *
 	 * @since 6.5.0
 	 *
-	 * @var string
+	 * @var int
 	 */
 	private $text_length;
 
@@ -2894,11 +2894,13 @@ public function get_comment_type(): ?string {
 	 * @return string
 	 */
 	public function get_modifiable_text(): string {
-		if ( null === $this->text_starts_at || 0 === $this->text_length ) {
+		$has_enqueued_update = isset( $this->lexical_updates['modifiable text'] );
+
+		if ( ! $has_enqueued_update && ( null === $this->text_starts_at || 0 === $this->text_length ) ) {
 			return '';
 		}
 
-		$text = isset( $this->lexical_updates['modifiable text'] )
+		$text = $has_enqueued_update
 			? $this->lexical_updates['modifiable text']->text
 			: substr( $this->html, $this->text_starts_at, $this->text_length );
 
diff --git a/tests/phpunit/tests/html-api/wpHtmlTagProcessorModifiableText.php b/tests/phpunit/tests/html-api/wpHtmlTagProcessorModifiableText.php
index 717d061016a2d..03c65321e34bd 100644
--- a/tests/phpunit/tests/html-api/wpHtmlTagProcessorModifiableText.php
+++ b/tests/phpunit/tests/html-api/wpHtmlTagProcessorModifiableText.php
@@ -39,6 +39,83 @@ public function test_get_modifiable_text_is_idempotent() {
 		}
 	}
 
+	/**
+	 * Ensures that `get_modifiable_text()` reads enqueued updates when read
+	 * from after writing; guarantees consistency through writes.
+	 *
+	 * @ticket 61617
+	 */
+	public function test_get_modifiable_text_is_consistent_after_writes() {
+		$before    = 'just some text';
+		$after     = 'different text';
+		$processor = new WP_HTML_Tag_Processor( $before );
+		$processor->next_token();
+
+		$this->assertSame(
+			'#text',
+			$processor->get_token_name(),
+			"Should have found text node but found '{$processor->get_token_name()}' instead: check test setup."
+		);
+
+		$this->assertSame(
+			$before,
+			$processor->get_modifiable_text(),
+			'Should have found initial test text: check test setup.'
+		);
+
+		$processor->set_modifiable_text( $after );
+		$this->assertSame(
+			$after,
+			$processor->get_modifiable_text(),
+			'Should have found enqueued updated text.'
+		);
+
+		$processor->get_updated_html();
+		$this->assertSame(
+			$after,
+			$processor->get_modifiable_text(),
+			'Should have found updated text.'
+		);
+	}
+
+	/**
+	 * Ensures that `get_modifiable_text()` reads enqueued updates when read from after
+	 * writing when starting from an empty text; guarantees consistency through writes.
+	 *
+	 * @ticket 61617
+	 */
+	public function test_get_modifiable_text_is_consistent_after_writes_to_empty_text() {
+		$after     = 'different text';
+		$processor = new WP_HTML_Tag_Processor( '<script></script>' );
+		$processor->next_token();
+
+		$this->assertSame(
+			'SCRIPT',
+			$processor->get_token_name(),
+			"Should have found text node but found '{$processor->get_token_name()}' instead: check test setup."
+		);
+
+		$this->assertSame(
+			'',
+			$processor->get_modifiable_text(),
+			'Should have found initial test text: check test setup.'
+		);
+
+		$processor->set_modifiable_text( $after );
+		$this->assertSame(
+			$after,
+			$processor->get_modifiable_text(),
+			'Should have found enqueued updated text.'
+		);
+
+		$processor->get_updated_html();
+		$this->assertSame(
+			$after,
+			$processor->get_modifiable_text(),
+			'Should have found updated text.'
+		);
+	}
+
 	/**
 	 * Ensures that updates to modifiable text that are shorter than the
 	 * original text do not cause the parser to lose its orientation.