Headline
GHSA-6qjx-787v-6pxr: Craft CMS stored XSS in indexedVolumes
Summary
XSS can be triggered via the Update Asset Index utility
PoC
- Access setting tab
- Create new assets
- In assets name inject payload: "<script>alert(26)</script>
- Click Utilities tab
- Choose all volumes, or volume trigger xss
- Click Update asset indexes.
XSS will be triggered
Json response volumes name makes triggers the payload
"session":{"id":1,"indexedVolumes":{"1":"\"<script>alert(26)</script>"},
It’s run on every POST request in the utility.
Resolved in https://github.com/craftcms/cms/commit/8c2ad0bd313015b8ee42326af2848ee748f1d766
Package
Affected versions
>= 4.0.0-RC1, <= 4.4.5
Description
Summary
XSS can be triggered via the Update Asset Index utility
PoC
- Access setting tab
- Create new assets
- In assets name inject payload: "<script>alert(26)</script>
- Click Utilities tab
- Choose all volumes, or volume trigger xss
- Click Update asset indexes.
XSS will be triggered
Json response volumes name makes triggers the payload
"session":{"id":1,"indexedVolumes":{"1":"\"<script>alert(26)</script>"},
It’s run on every POST request in the utility.
Resolved in craftcms/cms@8c2ad0b
References
- GHSA-6qjx-787v-6pxr
- craftcms/cms@8c2ad0b
- https://github.com/craftcms/cms/releases/tag/4.4.6
Published to the GitHub Advisory Database
May 26, 2023
Related news
Craft is a CMS for creating custom digital experiences on the web. Cross-site scripting (XSS) can be triggered via the Update Asset Index utility. This issue has been patched in version 4.4.6.