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CVE-2020-27976

33
FAUCET Score

CVE-2020-27976 describes a critical OS command injection vulnerability in osCommerce Phoenix CE versions prior to 1.0.5.4. This flaw, located in admin/mail.php, allows remote attackers to execute arbitrary commands by manipulating the 'from' POST parameter, which is then passed to the PHP mail function's sendmail -f option. With a CVSS score of 9.8 (CRITICAL), successful exploitation could lead to complete compromise of the affected system, requiring no user interaction or authentication. Despite its high severity and a FAUCET Risk Score of 94/100, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), and it shows minimal community discussion or media coverage, suggesting it is not actively exploited in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.5.4CPE matchmatch criteria
cpe:2.3:a:oscommerce:oscommerce:*:*:*:*:phoenix:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.04%
Probability of exploitation in next 30 days
EPSS Percentile
93.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0704 is in the 89th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

herolab.usd.de / security-advisories/usd-2020-0026
ExploitThird Party Advisory