diff --git a/phpBB/docs/CHANGELOG.html b/phpBB/docs/CHANGELOG.html
index 6e4b9d6de5..2e2b228771 100644
--- a/phpBB/docs/CHANGELOG.html
+++ b/phpBB/docs/CHANGELOG.html
@@ -157,6 +157,7 @@
 		<li>[Fix] Allow convertors to read in configuration from files. (Bug #57265 - Patch by Dicky)</li>
 		<li>[Fix] Fix problems with firebird by no longer using 'count' as a column alias. (Bug #57455)</li>
 		<li>[Fix] Small language correction for the FAQ page. (Bug #57825)</li>
+		<li>[Fix] Restrict search for language/../iso.txt to folders. (Bug #57795)</li>
 		<li>[Change] Move redirect into a hidden field to avoid issues with mod_security. (Bug #54145)</li>
 		<li>[Change] Log activation through inactive users ACP. (Bug #30145)</li>
 		<li>[Change] Send time of last item instead of current time in ATOM Feeds. (Bug #53305)</li>
diff --git a/phpBB/includes/acp/acp_language.php b/phpBB/includes/acp/acp_language.php
index 8ca45a27f6..fedae6fe67 100644
--- a/phpBB/includes/acp/acp_language.php
+++ b/phpBB/includes/acp/acp_language.php
@@ -1120,6 +1120,11 @@ class acp_language
 		{
 			while (($file = readdir($dp)) !== false)
 			{
+				if (!is_dir($phpbb_root_path . 'language/' . $file))
+				{
+					continue;
+				}
+
 				if ($file[0] != '.' && file_exists("{$phpbb_root_path}language/$file/iso.txt"))
 				{
 					if (!in_array($file, $installed))