CVE-2026-128041
OpenMage magento-lts before 20.18.2 Stored XSS via RSS Review Feed
CVSS Score
8.0
EPSS Score
0.0%
EPSS Percentile
0th
OpenMage magento-lts before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 serves RSS feeds with a text/html content type and does not escape feed entry data, leading to stored cross-site scripting. An unauthenticated guest can submit a product review with script in the nickname, title or text that executes when an administrator opens the pending-reviews feed, enabling admin account takeover.
| CWE | CWE-79 |
| Vendor | openmage |
| Product | magento-lts |
| Published | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
OpenMage / magento-lts
0 < 20.18.2
OpenMage / magento-lts
21.0.0-beta1 < 21.0.0-beta3
References
github.com: https://github.com/OpenMage/magento-lts/security/advisories/GHSA-j9c5-pcvx-jx9x github.com: https://github.com/OpenMage/magento-lts/commit/34e88f5447dff22e4ddc8cb0952d934ac3fdd15b vulncheck.com: https://www.vulncheck.com/advisories/openmage-magento-lts-before-20.18.2-stored-xss-via-rss-review-feed
Credits
colinmollenhour Hanmac