GHSA-f4vq-pj32-gr4q
Concrete CMS has a stored Cross-site Scripting (XSS) vulnerability
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | concrete5/concrete5 | < 9.4.8 | 9.4.8 |
Details
As written in the advisory (Markdown source, shown as plain text).
In Concrete CMS below version 9.4.8, a Cross-site Scripting (XSS) vulnerability exists in the "Legacy Form" block. An authenticated user with permissions to create or edit forms (e.g., a rogue administrator) can inject a persistent JavaScript payload into the options of a multiple-choice question (Checkbox List, Radio Buttons, or Select Box). This payload is then executed in the browser of any user who views the page containing the form.
The Concrete CMS security team thanks M3dium for reporting.
References
External links from the advisory. They lead to third-party sites.