XSS in Authorize.net Payment Terminal
CVE-2021-47885
Multiple payment terminal versions contain non-persistent cross-site scripting vulnerabilities in billing and payment information input fields. Attackers can inject malicious script code through vulnerable parameters to manipulate client-side requests and potentially execute session hijacking or phishing attacks.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Authorize.net Payment Terminal — versions 2.4.1
- Criticalgears Paypal Pro Payment Terminal — versions 3.1
- Criticalgears Stripe Payment Terminal — versions 2.2.1
Weakness classification (CWE)
References
- www.vulnerability-lab.com/get_content.php (exploit)
- www.criticalgears.com/product/authorize-net-payment-terminal/ (product)
- www.criticalgears.com/product/paypal-pro-payment-terminal/ (product)
- www.criticalgears.com/product/stripe-payment-terminal/ (product)
- www.vulncheck.com/advisories/payment-terminal-multiple-versions-non-persistent-… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47885?
- CVE-2021-47885 is a medium-severity vulnerability in Authorize.net Payment Terminal, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-02-01.
- How severe is CVE-2021-47885?
- Medium severity. CVSS v3 base score is 6.4 out of 10.