SQL Injection in Oscommerce
CVE-2026-18592
A security flaw has been discovered in osCommerce 4.14.63493. Affected by this issue is the function EmailController of the file app/lib/backend/controllers/EmailController.php of the component Email Template Configuration. Performing a manipulation of the argument email_templates_key results in sql injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (26.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Oscommerce — versions 4.14.63493
Weakness classification (CWE)
References
- vuldb.com/vuln/385420 (technical-description, vdb-entry)
- vuldb.com/vuln/385420/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-18592 (third-party-advisory)
- vuldb.com/submit/851289 (third-party-advisory)
- anonymous.4open.science/r/oscommerce-E7D5/second-order-sqli-report.md (exploit)
Frequently asked questions
- What is CVE-2026-18592?
- CVE-2026-18592 is a medium-severity vulnerability in Oscommerce, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.7/10. Published 2026-08-03.
- How severe is CVE-2026-18592?
- Medium severity. CVSS v3 base score is 4.7 out of 10.