CVE-2026-70560Public exploitNetwork attack vector

Stored XSS via unescaped leave notifications

Published Aug 12, 2026 · Updated Aug 12, 2026

Stored cross-site scripting in Ultimate Fosters Ultimate POS 7.2 and earlier allows remote authenticated users to execute script in admin browsers. The leave-application notification pane renders the stored first-name value as HTML without sanitization or output escaping. A low-privileged Cashier must create a user with the payload and submit a leave request; execution occurs when a higher-privileged user views the notification, exposing that browser session to cross-user compromise.

CVSS severity4.8
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Ultimate Fosters Ultimate POS 7.2 and earlier allows remote authenticated users to execute script in admin browsers. The leave-application notification pane renders the stored first-name value as HTML without sanitization or output escaping. A low-privileged Cashier must create a user with the payload and submit a leave request; execution occurs when a higher-privileged user views the notification, exposing that browser session to cross-user compromise.

The record

CVE
CVE-2026-70560
Published
Aug 12, 2026
Updated
Aug 12, 2026
Vendor
Ultimate Fosters
Product
Ultimate POS
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ultimate Fosters · Ultimate POSversion=0 <=7.2

Published CVSS scores

4.8VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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