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Medium 4.7

OpenMage magento-lts before 20.18.2 Stored XSS via Product Custom Option SVG Upload

CVE-2026-128028 First seen on SecPulse

Summary

OpenMage magento-lts before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 contains a stored cross-site scripting vulnerability in Mage_Catalog_Model_Product_Option_Type_File, which accepts guest SVG, XHTML, or XML uploads through product File custom options with an empty allowed-extension list. Unaut...

Affected packages

PackageAffected → Fixed
OpenMagemagento-lts
≥ 21.0.0-beta1, < 21.0.0-beta3→ 21.0.0-beta3
Original description The description as published by the source.

OpenMage magento-lts before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 contains a stored cross-site scripting vulnerability in Mage_Catalog_Model_Product_Option_Type_File, which accepts guest SVG, XHTML, or XML uploads through product File custom options with an empty allowed-extension list. Unauthenticated attackers can send the file URL under media/custom_options/ to victims, executing script in the store origin and exposing administrator sessions when the admin panel shares that origin.

Source: CVE.org (CVE Program・cvelistV5) NVD

References

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