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CVE-2012-5797

19
FAUCET Score

CVE-2012-5797 describes a critical vulnerability in the PayPal Pro PayFlow module for osCommerce, where the module fails to properly validate the server hostname against the X.509 certificate's subject fields. This flaw allows man-in-the-middle attackers to spoof SSL servers using any valid certificate, potentially intercepting sensitive payment information. The vulnerability carries a CVSS score of 5.8 (Medium), indicating a network-based attack with medium complexity, requiring no authentication, and potentially leading to partial confidentiality and integrity compromise. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the potential for financial fraud makes this a notable concern for affected osCommerce users.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:brian_burton:paypal_pro_payflow_module:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:oscommerce:oscommerce:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
43.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 7th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/79954
cs.utexas.edu / ~shmat/shmat_ccs12.pdf
Exploit