GHSA-jq4p-mq33-w375 — Cross-site Scripting when rendering error messages in laminas-form

The advisory, in context

Impact

When rendering validation error messages via the formElementErrors() view helper shipped with laminas-form, many messages will contain the submitted value. However, in vulnerable versions of laminas-form, the value was not being escaped for HTML contexts, which can potentially lead to a Reflected Cross-Site Scripting (XSS) attack.

Patches

The following versions were issued to mitigate the vulnerability:

2.17.1
3.0.2
3.1.1

Workarounds

At the top of a view script where you call the formElementErrors() view helper, place the following code:

use Laminas\Form\ElementInterface;
use Laminas\View\PhpRenderer;

$escapeMessages = function (ElementInterface $formOrElement, PhpRenderer $renderer): void {
    $messages = $element->getMessages();
    if (! $messages) {
        return;
    }

    $escaped  = [];
    array_walk_recursive(
        $messages,
        static function (string $item) use (&$escaped, $renderer): void {
            $escaped[] = $renderer->escapeHtml($item);
        }
    };

    $element->setMessages($escaped);
};

Before calling formElementErrors() with a form, fieldset, or element, call the above closure as follows

// Usage with a form
// $this is the view renderer
$escapeMessages($form, $this);

// Usage with a fieldset
// $this is the view renderer
$escapeMessages($fieldset, $this);

// Usage with a form element
// $this is the view renderer
$escapeMessages($element, $this);

For more information

If you have any questions or comments about this advisory:

Open an issue
Email us at security@getlaminas.org

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

laminas/laminas-form Packagist

Ecosystem versions

From 3.1.0 before 3.1.1

Fixed in 3.1.1

1 explicitly affected versions

3.1.0

View affected-version evidence

{
  "ranges": [
    {
      "events": [
        {
          "introduced": "3.1.0"
        },
        {
          "fixed": "3.1.1"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "3.1.0"
  ]
}

laminas/laminas-form Packagist

Ecosystem versions

From 3.0.0 before 3.0.2

Fixed in 3.0.2

2 explicitly affected versions

3.0.0, 3.0.1

View affected-version evidence

{
  "ranges": [
    {
      "events": [
        {
          "introduced": "3.0.0"
        },
        {
          "fixed": "3.0.2"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "3.0.0",
    "3.0.1"
  ]
}

laminas/laminas-form Packagist

Ecosystem versions

Earlier releases before 2.17.1

Fixed in 2.17.1

97 explicitly affected versions

2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7, 2.0.8, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.1.6, 2.10.0, 2.10.1, 2.10.2, 2.11.0, 2.12.0, 2.12.1, 2.13.0, 2.14.0, 2.14.1, 2.14.2, 2.14.3, 2.14.4, 2.14.5, 2.14.6, 2.15.0, 2.15.1, 2.16.0, 2.16.1, 2.16.2, 2.16.3, 2.17.0, 2.2.0, 2.2.0rc1, 2.2.0rc2, 2.2.0rc3, 2.2.1, 2.2.10, 2.2.2, 2.2.3, 2.2.4, 2.2.5, 2.2.6, 2.2.7, 2.2.8, 2.2.9, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.3.5, 2.3.6, 2.3.7, 2.3.8, 2.3.9, 2.4.0, 2.4.0rc1, 2.4.0rc2, 2.4.0rc3, 2.4.0rc4, 2.4.0rc5, 2.4.0rc6, 2.4.0rc7, 2.4.1, 2.4.10, 2.4.11, 2.4.12, 2.4.13, 2.4.2, 2.4.3, 2.4.4, 2.4.5, 2.4.6, 2.4.7, 2.4.8, 2.4.9, 2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.6.0, 2.7.0, 2.7.1, 2.8.0, 2.8.1, 2.8.2, 2.8.3, 2.8.4, 2.9.0, 2.9.1, 2.9.2

View affected-version evidence

{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "2.17.1"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "2.0.0",
    "2.0.1",
    "2.0.2",
    "2.0.3",
    "2.0.4",
    "2.0.5",
    "2.0.6",
    "2.0.7",
    "2.0.8",
    "2.1.0",
    "2.1.1",
    "2.1.2",
    "2.1.3",
    "2.1.4",
    "2.1.5",
    "2.1.6",
    "2.10.0",
    "2.10.1",
    "2.10.2",
    "2.11.0",
    "2.12.0",
    "2.12.1",
    "2.13.0",
    "2.14.0",
    "2.14.1",
    "2.14.2",
    "2.14.3",
    "2.14.4",
    "2.14.5",
    "2.14.6",
    "2.15.0",
    "2.15.1",
    "2.16.0",
    "2.16.1",
    "2.16.2",
    "2.16.3",
    "2.17.0",
    "2.2.0",
    "2.2.0rc1",
    "2.2.0rc2",
    "2.2.0rc3",
    "2.2.1",
    "2.2.10",
    "2.2.2",
    "2.2.3",
    "2.2.4",
    "2.2.5",
    "2.2.6",
    "2.2.7",
    "2.2.8",
    "2.2.9",
    "2.3.0",
    "2.3.1",
    "2.3.2",
    "2.3.3",
    "2.3.4",
    "2.3.5",
    "2.3.6",
    "2.3.7",
    "2.3.8",
    "2.3.9",
    "2.4.0",
    "2.4.0rc1",
    "2.4.0rc2",
    "2.4.0rc3",
    "2.4.0rc4",
    "2.4.0rc5",
    "2.4.0rc6",
    "2.4.0rc7",
    "2.4.1",
    "2.4.10",
    "2.4.11",
    "2.4.12",
    "2.4.13",
    "2.4.2",
    "2.4.3",
    "2.4.4",
    "2.4.5",
    "2.4.6",
    "2.4.7",
    "2.4.8",
    "2.4.9",
    "2.5.0",
    "2.5.1",
    "2.5.2",
    "2.5.3",
    "2.6.0",
    "2.7.0",
    "2.7.1",
    "2.8.0",
    "2.8.1",
    "2.8.2",
    "2.8.3",
    "2.8.4",
    "2.9.0",
    "2.9.1",
    "2.9.2"
  ]
}

Set up in your agent.

Investigate in your agent.

Cross-site Scripting when rendering error messages in laminas-form

The advisory, in context

Impact

Patches

Workarounds

For more information

Affected packages

References