CVE-2025-59413: cubecart Auth Bypass

Description

CubeCart is an ecommerce software solution. Prior to version 6.5.11, a logic flaw exists in the newsletter subscription endpoint that allows an attacker to unsubscribe any user without their consent. By changing the value of the force_unsubscribe parameter in the POST request to 1, an attacker can force the removal of any valid subscriber’s email address. This issue has been patched in version 6.5.11.

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CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-862 Missing Authorization

Affected Products

Vendor	Product	Versions
cubecart	cubecart	< 6.5.11

References

Advisories & Patches

https://github.com/cubecart/v6/commit/7fd1cd04f5d5c3ce1d7980327464f0ff6551de79 https://github.com/cubecart/v6/commit/db965fcfa260c4f17eb16f8c5494e5af4a8ac271 https://github.com/cubecart/v6/commit/dbc58cf1f7a6291f7add5893b56bff7920a29128 https://github.com/cubecart/v6/security/advisories/GHSA-869v-gjv8-9m7f https://github.com/cubecart/v6/security/advisories/GHSA-869v-gjv8-9m7f

Exploits

https://github.com/cubecart/v6/security/advisories/GHSA-869v-gjv8-9m7f https://github.com/cubecart/v6/security/advisories/GHSA-869v-gjv8-9m7f

Frequently Asked Questions

What is CVE-2025-59413? +

CubeCart is an ecommerce software solution. Prior to version 6.5.11, a logic flaw exists in the newsletter subscription endpoint that allows an attacker to unsubscribe any user without their consent. By changing the value of the force_unsubscribe parameter in the POST request to 1, an attacker can force the removal of any valid subscriber’s email address. This issue has been patched in version 6.5.11. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-59413? +

CVE-2025-59413 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-59413? +

CVE-2025-59413 affects products from cubecart, specifically: cubecart. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-59413? +

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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