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 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...

CVE-2026-107850 Contao: Improper access control in the preview links module

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-2026-107850

The Contao Open Source CMS is vulnerable to improper access control in the preview links module from versions 5.7.1 until 5.7.12 . The root cause is a configuration error in core-bundle/config/services.yaml, where the preview access voter is registered under an incorrect class name. This causes S...

CVE-2026-107850 Contao: Improper access control in the preview links module

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...

EUVD-2026-95980

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-2026-82394 Sulu: Fix authorization bypass when creating preview links

Sulu is an open-source PHP content management system based on the Symfony framework. Prior to versions 2.6.25 and 3.0.8, the preview-link endpoint and src/Sulu/Bundle/PreviewBundle/Application/Manager/PreviewLinkManager.php do not enforce VIEW permission for the target resource in...

Improper access control in the preview links module (see GHSA-q6wp-fr43-gm9v)

More info at https://contao.org/en/security-advisories/improper-access-control-in-the-preview-links-module...

Improper access control in the preview links module (see GHSA-q6wp-fr43-gm9v)

More info at https://contao.org/en/security-advisories/improper-access-control-in-the-preview-links-module...

Missing Authorization

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Missing Authorization in the assets/preview-thumb endpoint when a user with Control Panel access but without asset-view permission requests a preview for a private asset. An attacker can obta...

BIT-GHOST-2026-24778 Ghost vulnerable to XSS via malicious Portal preview links

Ghost is an open source content management system. In Ghost versions 5.43.0 through 5.12.04 and 6.0.0 through 6.14.0, an attacker was able to craft a malicious link that, when accessed by an authenticated staff user or member, would execute JavaScript with the victim's permissions, potentially...

Cross-site Scripting (XSS)

Overview @tryghost/portal is a Affected versions of this package are vulnerable to Cross-site Scripting XSS via the Portal preview links, an attacker could craft a malicious link that, when accessed by an authenticated staff user or member, would execute JavaScript with the victim's permissions,...

CVE-2026-24778

Ghost is vulnerable to an XSS issue via malicious Portal preview links. Affected: Ghost CMS versions 5.43.0–5.12.04 and 6.0.0–6.14.0, plus Portal components 2.29.1–2.51.4 and 2.52.0–2.57.0. Concordant advisories describe that an authenticated staff member or member clicking a crafted link could e...

DRUPAL-CONTRIB-2019-004

The Preview Link module enables you to generate preview links so anonymous users can access unpublished revisions of content. The last release of the module introduced an access bypass allowing users to present invalid tokens but still access unpublished content...

CVE-2018-20436

The "secret chat" feature in Telegram 4.9.1 for Android has a "side channel" in which Telegram servers send GET requests for URLs typed while composing a chat message, before that chat message is sent. There are also GET requests to other URLs on the same web server. This also affects one or more...

PT-2018-15375 · Telegram · Telegram

Name of the Vulnerable Software and Affected Versions: Telegram version 4.9.1 Telegram Web-version 0.7.0 Description: The issue concerns a side channel in the "secret chat" feature where Telegram servers send GET requests for URLs typed while composing a chat message, before the message is sent...

CVE-2018-20436: Server-Side Request Forgery (SSRF)

The "secret chat" feature in Telegram 4.9.1 for Android has a "side channel" in which Telegram servers send GET requests for URLs typed while composing a chat message, before that chat message is sent. There are also GET requests to other URLs on the same web server. This also affects one or more...