Contao <4.13.3 - Cross-Site Scripting

Contao prior to 4.13.3 contains a cross-site scripting vulnerability. It is possible to inject arbitrary JavaScript code into the canonical tag. id: CVE-2022-24899 info: name: Contao 4.13.3 - Cross-Site Scripting author: ritikchaddha severity: medium description: | Contao prior to 4.13.3 contains...

CVE-2022-26265

CVE-2022-26265 Contao CMS RCE This repo is part of the hgrab-framework Affected product Contao CMS v1.5.0 Installation Install the app on the server user@domain: git clone https://github.com/sh4den/CVE-2022-26265.git user@domain: cd ./CVE-2022-26265/ user@domain: python3 main.py The list file mus...

CVE-2022-26265

CVE-2022-26265 The first proof of concept of the Contao CMS RCE This repo is part of the hgrab-framework Affected product Contao CMS v1.5.0 Installation Install the app on the server...

CVE-2026-107850

Contao is an Open Source CMS. From version 5.7.1 until 5.7.12, core-bundle/config/services.yaml registers the preview access voter as Contao\CoreBundle\Security\Voter\DataContainer\PreviewAccessVoter although the shipped class is PreviewVoter. Symfony therefore omits voter autoconfiguration and...

CVE-2026-107848

Contao is an Open Source CMS. From version 4.0.0 until 5.3.50 and 5.7.12, RequestTokenListener validates REQUESTTOKEN only for POST requests, while the declarative GET guard runs only when an act parameter is present. Backend actions dispatched through the key parameter can therefore execute...

CVE-2026-107851

Contao is an Open Source CMS. From version 5.7.0 until 5.7.12, TableAccessVoter::hasAccessToModule in core-bundle/src/Security/Voter/DataContainer/TableAccessVoter.php caches authorization decisions using only $tokenHash, a hash of the user's security token, and omits the table returned by...

Contao: Protected page content is disclosed to anonymous visitors after contao.search.index_protected is disabled

ModuleSearch decides whether to filter protected pages out of search results based on the current value of contao.search.indexprotected, but the authorisation data lives per row in tlsearch. Turning the setting off removes the filter without removing the rows, so protected pages that were indexed...

GHSA-X2RP-9QF7-2FMQ Contao: Protected page content is disclosed to anonymous visitors after contao.search.index_protected is disabled

ModuleSearch decides whether to filter protected pages out of search results based on the current value of contao.search.indexprotected, but the authorisation data lives per row in tlsearch. Turning the setting off removes the filter without removing the rows, so protected pages that were indexed...

GHSA-MFXH-VP55-7GC6 Contao: The registration module re-sends activation mails

ModuleRegistration::compile reaches its follow-up registration branch on any POST to a page carrying the module. That branch checks neither FORMSUBMIT nor the captcha result computed immediately above it, and resendActivationMail leads to OptInToken::send, which has no rate limit at all. Impact...

Contao: The registration module re-sends activation mails

ModuleRegistration::compile reaches its follow-up registration branch on any POST to a page carrying the module. That branch checks neither FORMSUBMIT nor the captcha result computed immediately above it, and resendActivationMail leads to OptInToken::send, which has no rate limit at all. Impact...

GHSA-9FF2-P842-45WQ Contao: Cross-site request forgery in custom backend actions

RequestTokenListener is the only generic REQUESTTOKEN validator in Contao and it only runs on POST. On the GET side the guard is local and declarative, and it only fires when an act parameter is present. Every back end action dispatched through a different parameter therefore has no CSRF protecti...

Contao: Cross-site request forgery in custom backend actions

RequestTokenListener is the only generic REQUESTTOKEN validator in Contao and it only runs on POST. On the GET side the guard is local and declarative, and it only fires when an act parameter is present. Every back end action dispatched through a different parameter therefore has no CSRF protecti...

GHSA-MRVP-7WMX-5M4H Contao: Path traversal in the images controller

ImagesController joins the user controlled path onto the configured image target directory with Path::join, which canonicalises .. segments, and never calls Path::isBasePath to confirm the result stayed inside that directory. An unauthenticated GET with percent encoded dot segments therefore...

Contao: Path traversal in the images controller

ImagesController joins the user controlled path onto the configured image target directory with Path::join, which canonicalises .. segments, and never calls Path::isBasePath to confirm the result stayed inside that directory. An unauthenticated GET with percent encoded dot segments therefore...

Contao: Cross-site scripting in the comments bundle

An unauthenticated front end visitor can post a comment containing a XSS injection. The victim is any back end user who opens the Comments module, and moderation makes exposure certain rather than preventing it. No Content-Security-Policy header is sent on the Contao back end, so nothing mitigate...

GHSA-628F-V4F6-P37R Contao: Cross-site scripting in the comments bundle

An unauthenticated front end visitor can post a comment containing a XSS injection. The victim is any back end user who opens the Comments module, and moderation makes exposure certain rather than preventing it. No Content-Security-Policy header is sent on the Contao back end, so nothing mitigate...

Contao: Improper access control in the preview links module

core-bundle/config/services.yaml registers the preview access voter with the class Contao\CoreBundle\Security\Voter\DataContainer\PreviewAccessVoter, but the class shipped on disk is named PreviewVoter. Symfony resolves the class with getReflectionClass$class, false, gets null, silently skips the...

GHSA-Q6WP-FR43-GM9V Contao: Improper access control in the preview links module

core-bundle/config/services.yaml registers the preview access voter with the class Contao\CoreBundle\Security\Voter\DataContainer\PreviewAccessVoter, but the class shipped on disk is named PreviewVoter. Symfony resolves the class with getReflectionClass$class, false, gets null, silently skips the...

Contao: Improper access control in the table access voter

Due to a caching defect in the security voter that governs table-level access to Contao's Data Container DCA backend, a low-privileged, non-admin backend user can obtain unauthorized read, create, update, and delete access to database tables outside their assigned module permissions. This include...

GHSA-5974-GFQC-WRCM Contao: Improper access control in the table access voter

Due to a caching defect in the security voter that governs table-level access to Contao's Data Container DCA backend, a low-privileged, non-admin backend user can obtain unauthorized read, create, update, and delete access to database tables outside their assigned module permissions. This include...