Vulnerability · Published Aug 12, 2026 · Assigned by VulnCheck
CVE-2026-70560Ultimate POS Stored XSS via First Name Field in Leave Notifications
Medium 5.4
In plain English
A medium-severity cross-site scripting in Ultimate POS (Stock Management & Point of Sale) from Ultimate Fosters. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).
Official description
Ultimate POS (Stock Management & Point of Sale) contains a stored cross-site scripting vulnerability that allows low-privileged authenticated attackers to inject arbitrary HTML and script markup by setting a malicious payload in the user first-name field during account creation. Attackers with a low-privileged role such as Cashier can submit a leave request through the HRM/Leave module, causing the unsanitized first-name markup to execute in the browser session of any higher-privileged user who views the leave-application notification pane, enabling cross-user session compromise within the admin origin.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Ultimate Fosters | Ultimate POS (Stock Management & Point of Sale) | 0 – through 7.2 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
References
- Product product
- GitHub Public Disclosure technical-description
- https://www.vulncheck.com/advisories/ultimate-pos-stored-xss-via-first-name-field-in-leave-notifications third-party-advisory