Описание
Cross-site Scripting when rendering error messages in laminas-form
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:
Before calling formElementErrors() with a form, fieldset, or element, call the above closure as follows
For more information
If you have any questions or comments about this advisory:
- Open an issue
- Email us at security@getlaminas.org
Ссылки
- https://github.com/laminas/laminas-form/security/advisories/GHSA-jq4p-mq33-w375
- https://nvd.nist.gov/vuln/detail/CVE-2022-23598
- https://github.com/laminas/laminas-form/commit/43005a3ec4c2292d4f825273768d9b884acbca37
- https://getlaminas.org/security/advisory/LP-2022-01
- https://github.com/laminas/laminas-form
- https://github.com/laminas/laminas-form/releases/tag/2.17.1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CFF6WJ5I7PSEBRF6I753WKE2BXFBGQXE
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SLNABVK26CE4PFL57VLY242FW3QY4CPC
Пакеты
laminas/laminas-form
>= 3.1.0, < 3.1.1
3.1.1
laminas/laminas-form
>= 3.0.0, < 3.0.2
3.0.2
laminas/laminas-form
< 2.17.1
2.17.1
Связанные уязвимости
laminas-form is a package for validating and displaying simple and complex forms. When rendering validation error messages via the `formElementErrors()` view helper shipped with laminas-form, many messages will contain the submitted value. However, in laminas-form prior to version 3.1.1, the value was not being escaped for HTML contexts, which could potentially lead to a reflected cross-site scripting attack. Versions 3.1.1 and above contain a patch to mitigate the vulnerability. A workaround is available. One may manually place code at the top of a view script where one calls the `formElementErrors()` view helper. More information about this workaround is available on the GitHub Security Advisory.