CVE-2020-27976
CVE-2020-27976 is a critical-severity vulnerability in Oscommerce with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 10.0
- EPSS exploit prediction: 7% (94th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Oscommerce
- Published:
- Last modified:
Description
osCommerce Phoenix CE before 1.0.5.4 allows OS command injection remotely. Within admin/mail.php, a from POST parameter can be passed to the application. This affects the PHP mail function, and the sendmail -f option.
Frequently asked questions
- What is CVE-2020-27976?
- osCommerce Phoenix CE before 1.0.5.4 allows OS command injection remotely. Within admin/mail.php, a from POST parameter can be passed to the application. This affects the PHP mail function, and the sendmail -f option.
- How severe is CVE-2020-27976?
- CVE-2020-27976 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-27976 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-27976?
- CVE-2020-27976 affects Oscommerce. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-27976?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-27976 published?
- CVE-2020-27976 was published on 2020-10-28 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:oscommerce:oscommerce:*:*:*:*:phoenix:*:*:*
More vulnerabilities in Oscommerce
- CVE-2020-23360 — Critical (CVSS 9.8): oscommerce v2.3.4.1 has a functional problem in user registration and password rechecking, where a non-identical…
- CVE-2020-27975 — High (CVSS 8.8): osCommerce Phoenix CE before 1.0.5.4 allows admin/define_language.php CSRF.
- CVE-2019-25497 — High (CVSS 8.2): osCommerce 2.3.4.1 contains a SQL injection vulnerability that allows unauthenticated attackers to manipulate database…
- CVE-2019-25496 — High (CVSS 8.2): osCommerce 2.3.4.1 contains a SQL injection vulnerability that allows unauthenticated attackers to manipulate database…
- CVE-2019-25495 — High (CVSS 8.2): osCommerce 2.3.4.1 contains a SQL injection vulnerability that allows unauthenticated attackers to manipulate database…
- CVE-2011-4543 — High (CVSS 7.5): Multiple directory traversal vulnerabilities in osCommerce 3.0.2 allow remote attackers to include and execute…
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