CVE-2025-39424Network attack vector

Stored XSS via cross-site request forgery

Published Apr 17, 2025 · Updated Apr 28, 2026

CSRF in Pareto Software SimpleMaps 0.98 and earlier allows remote attackers to store script through a forged request. Patchstack has not published the affected request handler, missing anti-CSRF control, or unsanitized field that enables script storage. Exploitation requires a victim to submit the attacker-controlled request; stored script then runs in a later browser context with low confidentiality, integrity, and availability impact.

CVSS severity7.1
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in Pareto Software SimpleMaps 0.98 and earlier allows remote attackers to store script through a forged request. Patchstack has not published the affected request handler, missing anti-CSRF control, or unsanitized field that enables script storage. Exploitation requires a victim to submit the attacker-controlled request; stored script then runs in a later browser context with low confidentiality, integrity, and availability impact.

The record

CVE
CVE-2025-39424
Published
Apr 17, 2025
Updated
Apr 28, 2026
Vendor
Pareto Software, LLC
Product
SimpleMaps
Classifications
CWE-352
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=0.98 changes=[{"at":"0.99","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pareto Software, LLC · SimpleMapsversion=0 <=0.98 changes=[{"at":"0.99","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-352Cross-Site Request Forgery (CSRF)

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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