CVE-2025-70093Public exploitNetwork attack vector

Stored XSS via HTML-typed AJAX JSON

Published Feb 13, 2026 · Updated Feb 13, 2026

Stored XSS in OpenSourcePOS 3.4.1 allows remote authenticated users to execute JavaScript through crafted attribute data. AJAX endpoints such as /attributes/search return stored user input as JSON but label the response text/html, causing browsers to parse injected markup and event handlers as HTML. Exploitation requires attribute-creation access and a victim who opens the crafted endpoint; execution is confined to that victim's browser session and privileges.

CVSS severity7.4
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in OpenSourcePOS 3.4.1 allows remote authenticated users to execute JavaScript through crafted attribute data. AJAX endpoints such as /attributes/search return stored user input as JSON but label the response text/html, causing browsers to parse injected markup and event handlers as HTML. Exploitation requires attribute-creation access and a victim who opens the crafted endpoint; execution is confined to that victim's browser session and privileges.

The record

CVE
CVE-2025-70093
Published
Feb 13, 2026
Updated
Feb 13, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.4CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A: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.

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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-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1203Exploitation for Client Execution

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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