GHSA-vqxq-hvxw-9mv9
Statmic CMS vulnerable to account takeover via XSS and password reset link
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | statamic/cms | >= 4.00, < 4.46.0 | 4.46.0 |
| Packagist | statamic/cms | < 3.4.17 | 3.4.17 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
HTML files crafted to look like jpg files are able to be uploaded, allowing for XSS.
This affects:
- front-end forms with asset fields without any mime type validation
- asset fields in the control panel
- asset browser in the control panel
Additionally, if the XSS is crafted in a specific way, the "copy password reset link" feature may be exploited to gain access to a user's password reset token and gain access to their account. The authorized user is required to execute the XSS in order for the vulnerability to occur.
### Patches
In versions 4.46.0 and 3.4.17, the XSS vulnerability has been patched, and the copy password reset link functionality has been disabled. (Users may still trigger password reset emails.)
### Credits
Statamic thanks Niklas Schilling (discovery, analysis, coordination) from the SEC Consult Vulnerability Lab (https://www.sec-consult.com/) for responsibly reporting the identified issues and working with us as we addressed them.
References
External links from the advisory. They lead to third-party sites.