Auth bypass in Cubecart
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (32.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Cubecart
- Cubecart V6 — versions < 6.5.11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/cubecart/v6/security/advisories/GHSA-869v-gjv8-9m7f (Exploit, Vendor Advisory)
- github.com/cubecart/v6/commit/7fd1cd04f5d5c3ce1d7980327464f0ff6551de79 (Patch)
- github.com/cubecart/v6/commit/db965fcfa260c4f17eb16f8c5494e5af4a8ac271 (Patch)
- github.com/cubecart/v6/commit/dbc58cf1f7a6291f7add5893b56bff7920a29128 (Patch)
Frequently asked questions
- What is CVE-2025-59413?
- CVE-2025-59413 is a medium-severity vulnerability in Cubecart, classified under Missing Authorization. CVSS score: 6.5/10. Published 2025-09-22.
- How severe is CVE-2025-59413?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-59413 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.