diff --git a/src/Cms/Auth.php b/src/Cms/Auth.php
index 8f6d31e862..28d9f36e28 100644
--- a/src/Cms/Auth.php
+++ b/src/Cms/Auth.php
@@ -830,7 +830,9 @@ class_exists(static::$challenges[$challenge]) === true &&
 
             throw new LogicException('Invalid authentication challenge: ' . $challenge);
         } catch (Throwable $e) {
-            if (($e->getDetails()['reason'] ?? null) !== 'rate-limited') {
+            $details = is_a($e, 'Kirby\Exception\Exception') === true ? $e->getDetails() : [];
+
+            if (($details['reason'] ?? null) !== 'rate-limited') {
                 $this->track($email);
             }