What’s Vulnerable › Vulnerabilities

CVE-2020-15151: Observable Timing Discrepancy in OpenMage LTS

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-08-20 · updated 2026-06-17
• Weakness: CWE-203

Description

OpenMage LTS before versions 19.4.6 and 20.0.2 allows attackers to circumvent the `fromkey protection` in the Admin Interface and increases the attack surface for Cross Site Request Forgery attacks. This issue is related to Adobe's CVE-2020-9690. It is patched in versions 19.4.6 and 20.0.2.

Affected products

• Adobe Magento Commerce: through 2.3.5
• Openmage Long Term Support: before 19.4.6; from 20.0.0 before 20.0.2 — fixed in 19.4.6, 20.0.2

How to fix

Upgrade to a fixed version: Openmage Long Term Support 19.4.6, 20.0.2. Check the vendor advisory for mitigations.

References

• https://github.com/OpenMage/magento-lts/commit/7c526bc6a6a51b57a1bab4c60f104dc36cde347a
• https://github.com/OpenMage/magento-lts/security/advisories/GHSA-crf2-xm6x-46p6
• https://helpx.adobe.com/security/products/magento/apsb20-47.html
• https://github.com/OpenMage/magento-lts/commit/7c526bc6a6a51b57a1bab4c60f104dc36cde347a
• https://github.com/OpenMage/magento-lts/security/advisories/GHSA-crf2-xm6x-46p6
• https://helpx.adobe.com/security/products/magento/apsb20-47.html

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