YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki’s public Bazar entry-listing APIs are vulnerable to unauthenticated SQL injection in numeric query / queries filters. For Bazar fields whose value structure is numeric, YesWiki escapes the attacker-controlled filter value but inserts it into SQL without quotes or numeric validation. An unauthenticated attacker can inject boolean SQL expressions and infer database contents from whether entries are returned. This issue has been patched in version 4.6.6.

Affected: Packagist: yeswiki/yeswiki

### Summary YesWiki’s public Bazar entry-listing APIs are vulnerable to unauthenticated SQL injection in numeric `query` / `queries` filters.

For Bazar fields whose value structure is numeric, YesWiki escapes the attacker-controlled filter value but inserts it into SQL without quotes or numeric validation. An unauthenticated attacker can inject boolean SQL expressions and infer database contents from whether entries are returned.

### Details The public Bazar API reads attacker-controlled query filters from GET parameters:

```php // tools/bazar/controllers/ApiController.php $vQuery = $_GET['query'] ?? $_GET['queries'] ?? null; $vQuery = $vSearchManager->aggregateQueries( !empty($selectedEntries) ? ['queries' => ['id_fiche' => $selectedEntries]] : [], isset($vQuery) ? urldecode($vQuery) : '' ); ```

Relevant public routes include:

```php @Route("/api/forms/{formId}/entries/{output}/{selectedEntries}", methods={"GET"}, options={"acl":{"public"}}) @Route("/api/entries/{output}/{selectedEntries}", methods={"GET"}, options={"acl":{"public"}}) @Route("/api/entries/bazarlist", methods={"GET"}, options={"acl":{"public"}}) ```

The query is passed into `BazarListService::getEntries()` and then into `SearchManager::search()`:

```php // tools/bazar/services/BazarListService.php $vLocalEntries = $vSearchManager->search( array_merge( $pOptions, [ 'formsIds' => $vLocalIDs, ] ), true, true ); ```

The vulnerable sink is in `Se…