CVE-2020-23533 is a critical improper cryptographic signature verification vulnerability (CWE-347) affecting Union Pay versions up to 1.2.0. This flaw allows attackers to generate forged authentication codes due to a NULL secret key, enabling them to make unauthorized purchases on merchant websites and mobile applications. With a CVSS score of 7.5 (HIGH), it presents a significant risk, requiring no user interaction or authentication for exploitation. Despite its severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.2.0CPE matchmatch criteria | cpe:2.3:a:unionpayintl:union_pay:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.