CVE-2023-27489

Description

### Impact Kiwi TCMS accepts SVG files uploaded by users which could potentially contain JavaScript code. If SVG images are viewed directly, i.e. not rendered in an HTML page, this JavaScript code could execute. ### Patches This vulnerability has been fixed by configuring Kiwi TCMS to serve with the Content-Security-Policy HTTP header which blocks inline JavaScript in all modern browsers. ### Workarounds Configure Content-Security-Policy header, see [commit 6617cee0](https://github.com/kiwitcms/Kiwi/commit/6617cee0fb70cc394b7be6bbc86ef84e6e9de077). ### References You can visit https://digi.ninja/blog/svg_xss.php for more technical details. Independently disclosed by [Antonio Spataro](https://huntr.dev/bounties/bf99001b-a0a2-4f7d-98cd-983bc7f14a69/) and [@1d8](https://huntr.dev/bounties/f8c73bcc-02f3-4c65-a92b-1caa4d67c2fd/).

How to fix CVE-2023-27489

To remediate CVE-2023-27489, upgrade the affected package to a fixed version below.

• —upgrade to 12.1 or later

Is CVE-2023-27489 being exploited?

Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 12.1

CVSS scores

References (4)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-27489
• PATCHgithub.com/kiwitcms/Kiwi
• WEBgithub.com/kiwitcms/Kiwi/commit/6617cee0fb70cc394b7be6bbc86ef84e6e9de077
• WEBgithub.com/kiwitcms/Kiwi/security/advisories/GHSA-2wcr-87wf-cf9j