Vulnerability · Published Feb 1, 2026 · Assigned by VulnCheck
CVE-2021-47908Ultimate POS 4.4 Persistent Cross-Site Scripting via Product Name
Medium 6.4
In plain English
A medium-severity cross-site scripting in Unknown from thewebfosters. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS 3.1)6.4Medium
Exploit odds (30 days)0.3%top 72.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Ultimate POS 4.4 contains a persistent cross-site scripting vulnerability in the product name parameter that allows remote attackers to inject malicious scripts. Attackers can exploit the vulnerability through product add or edit functions to execute arbitrary JavaScript and potentially hijack user sessions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| thewebfosters | Unknown | 4.4 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
References
- Vulnerability Lab Advisory exploit
- Product Homepage product
- VulnCheck Advisory: Ultimate POS 4.4 Persistent Cross-Site Scripting via Product Name third-party-advisory