CVE-2019-14771

CVE-2019-14771 affects Backdrop CMS: versions 1.12.x prior to 1.12.8 and 1.13.x prior to 1.13.3. The flaw lets an attacker upload entire-site configuration archives via the UI or CLI without validating archive contents, potentially permitting non-configuration scripts to be stored on the server. ...

CVE-2022-42096

Backdrop CMS 1.23.0 contains a stored XSS in Post content. Exploitation requires authenticated content-creation/administrative privileges (per sources). An attacker can inject malicious JavaScript that may be executed when posts are viewed, potentially compromising administrator sessions. Remedia...

CVE-2022-42092

Backdrop CMS 1.22.0 is affected by an Unrestricted File Upload vulnerability via the themes component that can lead to Remote Code Execution. The issue is documented across multiple sources as susceptible to exploitation, with third-party notes arguing that advanced permissions may be required. A...

CVE-2019-19902

Backdrop CMS 1.13.x (<1.13.5) and 1.14.x (

CVE-2019-19900

Summary: Backdrop CMS is affected by a reflected/stored-XSS issue in the content-creation interface due to insufficient filtering of content type names. Affected versions are Backdrop CMS 1.13.x before 1.13.5 and 1.14.x before 1.14.2. An attacker must have a role with the “Administer content type...

CVE-2019-19903

Backdrop CMS 1.14.x before 1.14.2 is affected by an XSS in file type descriptions due to insufficient output filtering. An attacker with the Administer file types permission can craft a description that triggers scripting when an administrator views the list of file types. Root cause: inadequate ...

CVE-2022-42095

Backdrop CMS 1.23.0 contains a stored XSS vulnerability in Page content. The nuclei template identifies the vulnerable component as the Page content handling, with impact including injection of malicious scripts that could lead to data theft, session hijacking, or defacement. Root cause details i...

CVE-2019-19901

Backdrop CMS vulnerability CVE-2019-19901 affects 1.13.x before 1.13.5 and 1.14.x before 1.14.2. The issue is an XSS flaw in how block descriptions created by administrators are rendered, due to insufficient output filtering when displaying certain block descriptions. An attacker could craft a de...

CVE-2025-25062

CVE-2025-25062 is an XSS vulnerability in Backdrop CMS (CKEditor 5 module) affecting 1.28.x prior to 1.28.5 and 1.29.x prior to 1.29.3. The issue arises from insufficient isolation of long text content, enabling crafted HTML/JS to execute when an administrator edits content. Exploitation prospect...

CVE-2023-31045

Backdrop CMS

CVE-2024-54123

Backdrop CMS versions prior to 1.28.4 and 1.29.x prior to 1.29.2 are vulnerable to Cross-Site Scripting (XSS) . The root cause is a flaw in text formatting that allows the use of SVG markup ; if the SVG tag is permitted for a text format, an attacker can inject malicious scripts via an SVG docume...

CVE-2022-34530

CVE-2022-34530 affects Backdrop CMS v1.22.0. The issue lies in the login and password reset flow, allowing an attacker to enumerate usernames via password reset requests and receive distinct responses based on the username. The provided documents note a low confidentiality impact but do not speci...

CVE-2025-25063

Backdrop CMS has an XSS vulnerability (CVE-2025-25063) in versions 1.28.x before 1.28.5 and 1.29.x before 1.29.3 due to insufficient validation of uploaded SVG images. Crafted SVGs could execute scripting when viewed directly via their URL, though sanitization occurs by embedding all uploaded SVG...

CVE-2018-1000813

The CVE concerns Backdrop CMS versions up to 1.11.0, where a Cross Site Scripting (XSS) vulnerability exists in the sanitization of custom class names used on blocks and layouts, potentially enabling JavaScript execution from an unexpected source. The attack requires a user to be directed to an a...

CVE-2025-63828

Backdrop CMS version 1.32.1 is vulnerable to a Host Header Injection flaw due to improper validation of the Host header during password reset requests . An attacker can manipulate this header to redirect users to malicious domains and potentially perform session hijacking via cookie injection. Wh...

CVE-2025-44141

A Cross-Site Scripting (XSS) vulnerability exists in the node creation form of Backdrop CMS version 1.30 . The vulnerability allows for the execution of malicious scripts in the context of the user's session. To mitigate this risk, users are recommended to update to a version of Backdrop CMS that...