What’s Vulnerable › Vulnerabilities

CVE-2023-41879: Magento LTS's guest order "protect code" can be brute-forced too easily

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-09-11 · updated 2026-06-17
• Weakness: CWE-330

Description

Magento LTS is the official OpenMage LTS codebase. Guest orders may be viewed without authentication using a "guest-view" cookie which contains the order's "protect_code". This code is 6 hexadecimal characters which is arguably not enough to prevent a brute-force attack. Exposing each order would require a separate brute force attack. This issue has been patched in versions 19.5.1 and 20.1.1.

Affected products

• OpenMage magento-lts: before 19.5.1; from 20.0.0 before 20.1.1 — fixed in 19.5.1, 20.1.1

How to fix

Upgrade to a fixed version: OpenMage magento-lts 19.5.1, 20.1.1. Check the vendor advisory for mitigations.

References

• https://github.com/OpenMage/magento-lts/commit/2a2a2fb504247e8966f8ffc2e17d614be5d43128
• https://github.com/OpenMage/magento-lts/commit/31e74ac5d670b10001f88f038046b62367f15877
• https://github.com/OpenMage/magento-lts/releases/tag/v19.5.1
• https://github.com/OpenMage/magento-lts/releases/tag/v20.1.1
• https://github.com/OpenMage/magento-lts/security/advisories/GHSA-9358-cpvx-c2qp
• https://github.com/OpenMage/magento-lts/commit/2a2a2fb504247e8966f8ffc2e17d614be5d43128
• https://github.com/OpenMage/magento-lts/commit/31e74ac5d670b10001f88f038046b62367f15877
• https://github.com/OpenMage/magento-lts/releases/tag/v19.5.1
• https://github.com/OpenMage/magento-lts/releases/tag/v20.1.1
• https://github.com/OpenMage/magento-lts/security/advisories/GHSA-9358-cpvx-c2qp

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