CVE-2026-73381Network attack vector

Privileged actions via undisclosed auth bypass

Published Aug 18, 2026 · Updated Aug 18, 2026

Broken authentication in Supsystic Smart Popup by Supsystic through 1.13.0 allows remote attackers to perform privileged actions via crafted requests. Patchstack assigns CWE-288, but the public CVE record, Patchstack advisory, and vendor changelog do not disclose the affected endpoint, function, or authentication check that is bypassed. No credentials or user interaction are required according to the published CVSS vector, but the public record does not show whether exploitation yields persistent administrator accounts, one-time privileged changes, or both.

CVSS severity9.1
Critical
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Broken authentication in Supsystic Smart Popup by Supsystic through 1.13.0 allows remote attackers to perform privileged actions via crafted requests. Patchstack assigns CWE-288, but the public CVE record, Patchstack advisory, and vendor changelog do not disclose the affected endpoint, function, or authentication check that is bypassed. No credentials or user interaction are required according to the published CVSS vector, but the public record does not show whether exploitation yields persistent administrator accounts, one-time privileged changes, or both.

The record

CVE
CVE-2026-73381
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
Supsystic
Product
Smart Popup by Supsystic
Classifications
CWE-288, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=1.13.0 changes=[{"at":"1.13.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Supsystic · Smart Popup by Supsysticversion=n/a <=1.13.0 changes=[{"at":"1.13.1","status":"unaffected"}]

Published CVSS scores

9.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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