CVE-2018-18965
CVE-2018-18965 is a medium-severity vulnerability in Oscommerce Online Merchant with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 4.9)
- CVSS v2: 4.0
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Oscommerce Online Merchant
- Published:
- Last modified:
Description
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 alternative cases in which HTML can be executed, such as a file with no extension or an unrecognized extension (e.g., the test or test.asdf filename).
Frequently asked questions
- What is CVE-2018-18965?
- 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 alternative cases in which HTML can be executed, such as a file with no extension or an unrecognized extension (e.g., the test or test.asdf filename).
- How severe is CVE-2018-18965?
- CVE-2018-18965 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2018-18965 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-18965?
- CVE-2018-18965 affects Oscommerce Online Merchant. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-18965?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-18965 published?
- CVE-2018-18965 was published on 2018-11-06 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:oscommerce:online_merchant:2.3.4.1:*:*:*:*:*:*:*
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