CVE-2026-28177Network attack vector

Unauthenticated script execution via unescaped pagination URLs

Published Aug 6, 2026 · Updated Aug 6, 2026

Cross-site scripting in Daniel Iser Popup Maker 1.23.0 and earlier allows remote attackers to execute script via a crafted URL. The Subscribers page renders pagination URLs without sufficient output escaping, allowing attacker-controlled URL data to enter page markup. Successful exploitation requires a privileged user to visit the crafted page or link and runs script in that user’s browser context.

CVSS severity7.1
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Daniel Iser Popup Maker 1.23.0 and earlier allows remote attackers to execute script via a crafted URL. The Subscribers page renders pagination URLs without sufficient output escaping, allowing attacker-controlled URL data to enter page markup. Successful exploitation requires a privileged user to visit the crafted page or link and runs script in that user’s browser context.

The record

CVE
CVE-2026-28177
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
Code Atlantic
Product
Popup Maker
Classifications
CWE-79, CAPEC-588, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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=n/a <=1.23.0 changes=[{"at":"1.24.0","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Code Atlantic · Popup Makerversion=n/a <=1.23.0 changes=[{"at":"1.24.0","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-588DOM-Based XSS
T1203Exploitation for Client Execution

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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