Vulnerability Description
October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October CMS from version 1.0.319 and before version 1.0.469, backend users with access to upload files were permitted to upload SVG files without any sanitization applied to the uploaded files. Since SVG files support being parsed as HTML by browsers, this means that they could theoretically upload Javascript that would be executed on a path under the website's domain (i.e. /storage/app/media/evil.svg), but they would have to convince their target to visit that location directly in the target's browser as the backend does not display SVGs inline anywhere, SVGs are only displayed as image resources in the backend and are thus unable to be executed. Issue has been patched in Build 469 (v1.0.469) & v1.1.0.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Octobercms | October | >= 1.0.319, < 1.0.469 |
Related Weaknesses (CWE)
References
- https://github.com/octobercms/library/commit/80aab47f044a2660aa352450f55137598f3PatchThird Party Advisory
- https://github.com/octobercms/october/security/advisories/GHSA-fx3v-553x-3c4qThird Party Advisory
- https://github.com/octobercms/library/commit/80aab47f044a2660aa352450f55137598f3PatchThird Party Advisory
- https://github.com/octobercms/october/security/advisories/GHSA-fx3v-553x-3c4qThird Party Advisory
FAQ
What is CVE-2020-15249?
CVE-2020-15249 is a vulnerability with a CVSS score of 2.8 (LOW). October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October CMS from version 1.0.319 and before version 1.0.469, backend users with access to upload files w...
How severe is CVE-2020-15249?
CVE-2020-15249 has been rated LOW with a CVSS base score of 2.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15249?
Check the references section above for vendor advisories and patch information. Affected products include: Octobercms October.