Shopware: Stored XSS via SVG file upload — no SVG sanitization
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.9epss 0.3%
exploitation probability
0.3%top 80% of all CVEs
observed exploitation
nono source reports it
Shopware is an open commerce platform. Prior to 6.6.10.18 and 6.7.10.1, SVG files are in the allowed_extensions whitelist in src/Core/Framework/Resources/config/packages/shopware.yaml and can be uploaded via the media manager without SVG content sanitization in the upload pipeline from MediaUploadController to FileSaver to TypeDetector, allowing malicious SVG JavaScript such as onload, <script>, and <foreignObject> to execute in the Shopware domain when the uploaded SVG is viewed. This issue is fixed in versions 6.6.10.18 and 6.7.10.1.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
References
https://github.com/shopware/shopware/commit/745a3ea3b77d4fe0f78c595ef527d8453a134497https://github.com/shopware/shopware/commit/fd6d39bdb62dfa06fe62c7c87b37607d84094cdahttps://github.com/shopware/shopware/releases/tag/v6.6.10.18https://github.com/shopware/shopware/releases/tag/v6.7.10.1https://github.com/shopware/shopware/security/advisories/GHSA-xvhc-gm7j-mhmc