diff --git a/.phpcs.xml b/.phpcs.xml
index b46ac9661..078cb66c1 100644
--- a/.phpcs.xml
+++ b/.phpcs.xml
@@ -1,8 +1,6 @@
 <?xml version="1.0"?>
 <ruleset>
-	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki">
-		<exclude name="MediaWiki.Usage.DeprecatedGlobalVariables.Deprecated$wgContLang" />
-	</rule>
+	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki" />
 	<rule ref="Generic.Files.LineLength">
 		<exclude-pattern>AbuseFilter\.alias\.php</exclude-pattern>
 	</rule>
diff --git a/includes/AbuseFilter.php b/includes/AbuseFilter.php
index 9d150ff35..268392620 100644
--- a/includes/AbuseFilter.php
+++ b/includes/AbuseFilter.php
@@ -3073,11 +3073,10 @@ class AbuseFilter {
 	/**
 	 * @param string $action
 	 * @param string[] $parameters
+	 * @param Language $lang
 	 * @return string
 	 */
-	public static function formatAction( $action, $parameters ) {
-		/** @var $wgLang Language */
-		global $wgLang;
+	public static function formatAction( $action, $parameters, $lang ) {
 		if ( count( $parameters ) === 0 ||
 			( $action === 'block' && count( $parameters ) !== 3 ) ) {
 			$displayAction = self::getActionDisplay( $action );
@@ -3087,15 +3086,15 @@ class AbuseFilter {
 				$messages = [
 					wfMessage( 'abusefilter-block-anon' )->escaped() .
 					wfMessage( 'colon-separator' )->escaped() .
-					$wgLang->translateBlockExpiry( $parameters[1] ),
+					$lang->translateBlockExpiry( $parameters[1] ),
 					wfMessage( 'abusefilter-block-user' )->escaped() .
 					wfMessage( 'colon-separator' )->escaped() .
-					$wgLang->translateBlockExpiry( $parameters[2] )
+					$lang->translateBlockExpiry( $parameters[2] )
 				];
 				if ( $parameters[0] === 'blocktalk' ) {
 					$messages[] = wfMessage( 'abusefilter-block-talk' )->escaped();
 				}
-				$displayAction = $wgLang->commaList( $messages );
+				$displayAction = $lang->commaList( $messages );
 			} elseif ( $action === 'throttle' ) {
 				array_shift( $parameters );
 				list( $actions, $time ) = explode( ',', array_shift( $parameters ) );
@@ -3122,14 +3121,14 @@ class AbuseFilter {
 								$group = $msg->exists() ? $msg->text() : $group;
 							}
 							unset( $group );
-							$val = $wgLang->listToText( $subGroups );
+							$val = $lang->listToText( $subGroups );
 						} else {
 							$msg = wfMessage( "abusefilter-throttle-$val" );
 							$val = $msg->exists() ? $msg->text() : $val;
 						}
 					}
 					unset( $val );
-					$groups = $wgLang->semicolonList( $parameters );
+					$groups = $lang->semicolonList( $parameters );
 				}
 				$displayAction = self::getActionDisplay( $action ) .
 				wfMessage( 'colon-separator' )->escaped() .
@@ -3137,7 +3136,7 @@ class AbuseFilter {
 			} else {
 				$displayAction = self::getActionDisplay( $action ) .
 				wfMessage( 'colon-separator' )->escaped() .
-				$wgLang->semicolonList( array_map( 'htmlspecialchars', $parameters ) );
+				$lang->semicolonList( array_map( 'htmlspecialchars', $parameters ) );
 			}
 		}
 
@@ -3146,18 +3145,17 @@ class AbuseFilter {
 
 	/**
 	 * @param string $value
+	 * @param Language $lang
 	 * @return string
 	 */
-	public static function formatFlags( $value ) {
-		/** @var $wgLang Language */
-		global $wgLang;
+	public static function formatFlags( $value, $lang ) {
 		$flags = array_filter( explode( ',', $value ) );
 		$flags_display = [];
 		foreach ( $flags as $flag ) {
 			$flags_display[] = wfMessage( "abusefilter-history-$flag" )->escaped();
 		}
 
-		return $wgLang->commaList( $flags_display );
+		return $lang->commaList( $flags_display );
 	}
 
 	/**
diff --git a/includes/Views/AbuseFilterViewDiff.php b/includes/Views/AbuseFilterViewDiff.php
index 0dedbfebe..86480a8a8 100644
--- a/includes/Views/AbuseFilterViewDiff.php
+++ b/includes/Views/AbuseFilterViewDiff.php
@@ -311,8 +311,8 @@ class AbuseFilterViewDiff extends AbuseFilterView {
 		}
 		$info .= $this->getDiffRow(
 			'abusefilter-edit-flags',
-			AbuseFilter::formatFlags( $oldVersion['info']['flags'] ),
-			AbuseFilter::formatFlags( $newVersion['info']['flags'] )
+			AbuseFilter::formatFlags( $oldVersion['info']['flags'], $this->getLanguage() ),
+			AbuseFilter::formatFlags( $newVersion['info']['flags'], $this->getLanguage() )
 		);
 
 		$info .= $this->getDiffRow(
@@ -374,7 +374,7 @@ class AbuseFilterViewDiff extends AbuseFilterView {
 
 		ksort( $actions );
 		foreach ( $actions as $action => $parameters ) {
-			$lines[] = AbuseFilter::formatAction( $action, $parameters );
+			$lines[] = AbuseFilter::formatAction( $action, $parameters, $this->getLanguage() );
 		}
 
 		if ( !count( $lines ) ) {
diff --git a/includes/pagers/AbuseFilterHistoryPager.php b/includes/pagers/AbuseFilterHistoryPager.php
index 9613568cd..fc1a8facb 100644
--- a/includes/pagers/AbuseFilterHistoryPager.php
+++ b/includes/pagers/AbuseFilterHistoryPager.php
@@ -89,7 +89,7 @@ class AbuseFilterHistoryPager extends TablePager {
 				$formatted = htmlspecialchars( $value, ENT_QUOTES, 'UTF-8', false );
 				break;
 			case 'afh_flags':
-				$formatted = AbuseFilter::formatFlags( $value );
+				$formatted = AbuseFilter::formatFlags( $value, $lang );
 				break;
 			case 'afh_actions':
 				$actions = unserialize( $value );
@@ -97,7 +97,7 @@ class AbuseFilterHistoryPager extends TablePager {
 				$display_actions = '';
 
 				foreach ( $actions as $action => $parameters ) {
-					$displayAction = AbuseFilter::formatAction( $action, $parameters );
+					$displayAction = AbuseFilter::formatAction( $action, $parameters, $lang );
 					$display_actions .= Xml::tags( 'li', null, $displayAction );
 				}
 				$display_actions = Xml::tags( 'ul', null, $display_actions );
diff --git a/includes/parser/AbuseFilterParser.php b/includes/parser/AbuseFilterParser.php
index 1f5ea3a5a..5a4bbbfdc 100644
--- a/includes/parser/AbuseFilterParser.php
+++ b/includes/parser/AbuseFilterParser.php
@@ -2,6 +2,7 @@
 
 use Wikimedia\Equivset\Equivset;
 use MediaWiki\Logger\LoggerFactory;
+use MediaWiki\MediaWikiServices;
 
 class AbuseFilterParser {
 	public $mTokens, $mPos, $mShortCircuit, $mAllowShort;
@@ -899,11 +900,11 @@ class AbuseFilterParser {
 	 * @return AFPData
 	 */
 	protected function funcLc( $args ) {
-		global $wgContLang;
+		$contLang = MediaWikiServices::getInstance()->getContentLanguage();
 		$this->checkEnoughArguments( $args, 'lc', 1 );
 		$s = $args[0]->toString();
 
-		return new AFPData( AFPData::DSTRING, $wgContLang->lc( $s ) );
+		return new AFPData( AFPData::DSTRING, $contLang->lc( $s ) );
 	}
 
 	/**
@@ -911,11 +912,11 @@ class AbuseFilterParser {
 	 * @return AFPData
 	 */
 	protected function funcUc( $args ) {
-		global $wgContLang;
+		$contLang = MediaWikiServices::getInstance()->getContentLanguage();
 		$this->checkEnoughArguments( $args, 'uc', 1 );
 		$s = $args[0]->toString();
 
-		return new AFPData( AFPData::DSTRING, $wgContLang->uc( $s ) );
+		return new AFPData( AFPData::DSTRING, $contLang->uc( $s ) );
 	}
 
 	/**
diff --git a/tests/phpunit/AbuseFilterTest.php b/tests/phpunit/AbuseFilterTest.php
index a2e7d3d49..b1b324ce8 100644
--- a/tests/phpunit/AbuseFilterTest.php
+++ b/tests/phpunit/AbuseFilterTest.php
@@ -1331,7 +1331,6 @@ class AbuseFilterTest extends MediaWikiTestCase {
 	 * @dataProvider provideEditVars
 	 */
 	public function testGetEditVars( $oldText, $newText ) {
-		global $wgLang;
 		self::$mTitle = Title::makeTitle( 0, 'AbuseFilter test' );
 		self::$mPage = WikiPage::factory( self::$mTitle );
 
@@ -1379,7 +1378,7 @@ class AbuseFilterTest extends MediaWikiTestCase {
 		$this->assertCount(
 			0,
 			$differences,
-			'The following AbuseFilter variables are computed wrongly: ' . $wgLang->commaList( $differences )
+			'The following AbuseFilter variables are computed wrongly: ' . implode( ', ', $differences )
 		);
 	}