CVE-2026-127207: Auth Bypass (CVSS 5.4)

Description

Sendcloud for WooCommerce through 1.0.41 contains a missing authorization vulnerability that allows authenticated low-privileged users, including Subscribers, to access the sc_support_get and sc_support_save AJAX actions due to the absence of capability and nonce checks in SCCSP_Support_Controller. Attackers can call these wp_ajax_ handlers directly or via cross-site request forgery to disclose integration configuration data such as INTEGRATION_ID, SERVICE_POINT, CARRIERS, and MIN_LOG_LEVEL, and to modify the plugin's logging verbosity. This is an incomplete fix of CVE-2026-57760.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

https://hackmd.io/@buiih/HJ39N1-0Mx https://wordpress.org/plugins/sendcloud-connected-shipping/ https://www.vulncheck.com/advisories/sendcloud-for-woocommerce-missing-authorization-via-ajax-actions

Frequently Asked Questions

What is CVE-2026-127207? +

Sendcloud for WooCommerce through 1.0.41 contains a missing authorization vulnerability that allows authenticated low-privileged users, including Subscribers, to access the sc_support_get and sc_support_save AJAX actions due to the absence of capability and nonce checks in SCCSP_Support_Controller. Attackers can call these wp_ajax_ handlers directly or via cross-site request forgery to disclose integration configuration data such as INTEGRATION_ID, SERVICE_POINT, CARRIERS, and MIN_LOG_LEVEL, and to modify the plugin's logging verbosity. This is an incomplete fix of CVE-2026-57760. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2026-127207? +

CVE-2026-127207 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-127207? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-127207