fix: sanitize error output in server validation logs

Escape dynamic error messages with htmlspecialchars() before
concatenating into HTML strings stored in validation_logs. Add a
Purify-based mutator on Server model as defense-in-depth, with a
dedicated HTMLPurifier config that allows only safe structural tags.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Andras BacsaiandClaude Opus 4.6 committed 2026-03-26 18:36:36 +01:00
1 parent e39678aea5
commit 103d5b6c06
7 files changed
+102 -5

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@@ -63,7 +63,8 @@ class Show extends Component
$this->dispatch('success', 'Server is reachable.');
$this->dispatch('refreshServerShow');
} else {
$this->dispatch('error', 'Server is not reachable.<br><br>Check this <a target="_blank" class="underline" href="https://coolify.io/docs/knowledge-base/server/openssh">documentation</a> for further help.<br><br>Error: '.$error);
$sanitizedError = htmlspecialchars($error ?? '', ENT_QUOTES, 'UTF-8');
$this->dispatch('error', 'Server is not reachable.<br><br>Check this <a target="_blank" class="underline" href="https://coolify.io/docs/knowledge-base/server/openssh">documentation</a> for further help.<br><br>Error: '.$sanitizedError);
return;
}