CVE-2018-18964
osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page....
osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but there are several extensions in which contained HTML can be executed, such as the svg extension.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but there are several extensions in which contained HTML can be executed, such as the svg extension.
- Record
CVE-2018-18964- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:N - Updated
- 2026-11-02
CVE List No score
osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but there are several extensions in which contained HTML can be executed, such as the svg extension.
- Record
CVE-2018-18964- Updated
- 2026-11-02
EUVDEUVD-2018-10668 No score
osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but there are several extensions in which contained HTML can be executed, such as the svg extension.
- Record
EUVD-2018-10668- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3fqj-hqqx-wwf2
osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page....
osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but there are several extensions in which contained HTML can be executed, such as the svg extension.
- Record
GHSA-3fqj-hqqx-wwf2- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSV
osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but there are several extensions in which contained HTML can be executed, such as the svg extension.
- Record
CVE-2018-18964- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-18964 is a medium vulnerability (CVSS 4.9) in Oscommerce Online Merchant, published November 6, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.02%, the 63rd percentile. No source names a fixed version.