Cross-site Request Forgery (CSRF)

Overview Affected versions of this package are vulnerable to Cross-site Request Forgery CSRF via the actionExists process. An attacker can cause destructive changes to system state, such as truncating logs, resetting settings, altering user states, or deleting templates, by tricking an...

Winter: Stored XSS through cached Brand Settings and Editor Settings custom styles

Impact Users with the backend.managebranding "Customize the back-end" or backend.manageeditor "Manage global code editor preferences" permission can provide custom CSS through Settings → Customize Backend → Styles or Settings → Editor Settings → Markup Styles that is compiled through the LESS CSS...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the renderCss process. An attacker can inject malicious CSS or scripts into backend pages by providing specially crafted custom styles through the backend customization or editor settings interfaces. This ca...

GHSA-5CWR-5JXG-PCF6 Winter: Stored XSS through cached Brand Settings and Editor Settings custom styles

Impact Users with the backend.managebranding "Customize the back-end" or backend.manageeditor "Manage global code editor preferences" permission can provide custom CSS through Settings → Customize Backend → Styles or Settings → Editor Settings → Markup Styles that is compiled through the LESS CSS...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization in the ImportExportController AJAX handlers due to insufficient enforcement of granular access control. An attacker can access or modify sensitive data by invoking import or export operations through AJAX handler...

Winter: My Account preview exposes another backend user's profile by record ID

Impact Backend\Controllers\MyAccount, introduced in v1.2.13, declares an empty $requiredPermissions array so that any authenticated backend user can manage their own account. It implements the FormController behavior, which exposes three routable actions — create, update and preview — that each...

Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the preview and update actions in the backend account management process. An attacker can access sensitive profile information of other backend users by supplying arbitrary user IDs i...

GHSA-7MPF-4465-7FC2 Winter: Stored XSS through Backend List widget image columns

Impact Backend\Widgets\Lists::evalImageTypeValue interpolated the resolved image URL into a single-quoted src attribute without escaping it. Where a list column of type image rendered an attacker-influenced value, that value could break out of the attribute and inject arbitrary attributes —...

Winter: Stored XSS through Backend List widget image columns

Impact Backend\Widgets\Lists::evalImageTypeValue interpolated the resolved image URL into a single-quoted src attribute without escaping it. Where a list column of type image rendered an attacker-influenced value, that value could break out of the attribute and inject arbitrary attributes —...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the evalImageTypeValue process. An attacker can inject arbitrary attributes, including event handlers, into the backend list by supplying specially crafted values that are rendered in an image column, leading...

Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the FileUpload process. An attacker can gain unauthorized access to and modify metadata and ordering of attachments belonging to other users by submitting crafted fileid parameters to...

CVE-2026-53583 libgit2: Inverted IP SubjectAltName Comparison in OpenSSL Backend

libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, verifyservercert in src/libgit2/streams/openssl.c uses an inverted !!memcmp result in the GENIPADD...

CVE-2026-53583 libgit2: Inverted IP SubjectAltName Comparison in OpenSSL Backend

libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, verifyservercert in src/libgit2/streams/openssl.c uses an inverted !!memcmp result in the GENIPADD...

OpenTofu has high CPU usage when using K8S remote state backend or when parsing specifically crafted TLS certificates from untrusted or compromised servers

Impact Unauthenticated denial of service. Summary When OpenTofu performs requests against an untrusted or compromised third-party server or connects to an attacker-controlled server, the initial connection negotiation can produce high CPU usage, leading to possible denial of service. These...

GHSA-22W5-2FXG-VRWX OpenTofu has high CPU usage when using K8S remote state backend or when parsing specifically crafted TLS certificates from untrusted or compromised servers

Impact Unauthenticated denial of service. Summary When OpenTofu performs requests against an untrusted or compromised third-party server or connects to an attacker-controlled server, the initial connection negotiation can produce high CPU usage, leading to possible denial of service. These...

CVE-2026-18263

Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels RAS Client. An attacker must first obtain the ability to execute low-privileged cod...

CVE-2026-13121

Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels RAS Client. An attacker must first obtain the ability to execute low-privileged cod...

EUVD-2026-63464

Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels RAS Client. An attacker must first obtain the ability to execute low-privileged cod...

CVE-2026-18263 Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability

Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels RAS Client. An attacker must first obtain the ability to execute low-privileged cod...

CVE-2026-18262 Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability

Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels RAS Client. An attacker must first obtain the ability to execute low-privileged cod...