OpenMage magento-lts before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 contains a stored cross-site scripting vulnerability because admin pages render Dataflow profile link variables, tax rate titles, OAuth consumer names, and PayPal certificate filenames without escaping. An administrator restricted to one affected area can store script that runs when another administrator, including a full administrator, opens the page, reading the form key and performing actions with that administrator's privileges.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
OpenMage magento-lts unaffected
Version Status Constraints
0 affected < 20.18.2
20.18.2 unaffected —
OpenMage magento-lts unaffected
Version Status Constraints
21.0.0-beta1 affected < 21.0.0-beta3
21.0.0-beta3 unaffected —

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/OpenMage/magento-lts/commit/62d2885fa6e7a4454e3a5c7765a6a5ca0085ecc1 cve-icon cve-icon
https://github.com/OpenMage/magento-lts/commit/7f7a9deaac11fd2437bb1f8065db152a4b620609 cve-icon cve-icon
https://github.com/OpenMage/magento-lts/commit/d10314ddda9a6081bc27370b463b5f77c2e499de cve-icon cve-icon
https://github.com/OpenMage/magento-lts/commit/e97e257b8f8d74d2e52dbf28caa211c262ff26be cve-icon cve-icon
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-m858-x59w-rmp5 cve-icon cve-icon
https://www.vulncheck.com/advisories/openmage-magento-lts-before-20.18.2-stored-xss-via-admin-dataflow-tax-oauth-paypal-fields cve-icon cve-icon
History

Fri, 13 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
Description OpenMage magento-lts before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 contains a stored cross-site scripting vulnerability because admin pages render Dataflow profile link variables, tax rate titles, OAuth consumer names, and PayPal certificate filenames without escaping. An administrator restricted to one affected area can store script that runs when another administrator, including a full administrator, opens the page, reading the form key and performing actions with that administrator's privileges.
Title OpenMage magento-lts before 20.18.2 Stored XSS via Admin Dataflow, Tax, OAuth, PayPal Fields
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T09:33:58.324Z

Reserved: 2026-11-12T20:45:47.416Z

Link: CVE-2026-128040

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-13T10:18:09.547

Modified: 2026-11-13T10:18:09.547

Link: CVE-2026-128040

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses