OpenMage magento-lts before 20.19.0 and 21.0.0-beta1 before 21.0.0-beta3 contains a cross-site request forgery vulnerability in PayPal…
CVE-2026-128043
OpenMage magento-lts before 20.19.0 and 21.0.0-beta1 before 21.0.0-beta3 contains a cross-site request forgery vulnerability in PayPal cancel and decline return handlers that trust only the checkout session without verifying the request came from PayPal. Attackers can lure a shopper into a cross-site GET to paypal/standard/cancel to cancel their recent uninvoiced order, void pending authorizations, and restore items to the cart.
Assessment
- CVSS
- 2.3 (v4.0)
- Severity
- Low
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 13 November 2026
- Last updated
- 13 November 2026
- Affected
- OpenMage · magento-lts
- Assigner
- VulnCheck
CVSS vectorCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
At the source
References
- https://github.com/OpenMage/magento-lts/security/advisories/GHSA-2jfg-wx75-5cc8
- https://github.com/OpenMage/magento-lts/commit/86c8895d586db61ac7d093ba4e473103a30882c8
- https://www.vulncheck.com/advisories/openmage-magento-lts-before-20.19.0-csrf-via-paypal-cancel-return-handlers
- https://nvd.nist.gov/vuln/detail/CVE-2026-128043
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