CVE-2025-40663Network attack vector

Authenticated stored XSS via malicious SVG upload

Published May 26, 2025 · Updated May 27, 2025

Stored XSS in i2A-Cronos 23.02.01.17 allows remote authenticated users to run script through a malicious SVG upload. The PersonalDocuments upload stores an SVG containing active script in the user's personal space without neutralizing its browser-executable content. An authenticated account and passive interaction by another user are required; execution is limited to that user's browser context.

CVSS severity5.1
Medium
EPSS probability0.35%
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 i2A-Cronos 23.02.01.17 allows remote authenticated users to run script through a malicious SVG upload. The PersonalDocuments upload stores an SVG containing active script in the user's personal space without neutralizing its browser-executable content. An authenticated account and passive interaction by another user are required; execution is limited to that user's browser context.

The record

CVE
CVE-2025-40663
Published
May 26, 2025
Updated
May 27, 2025
Vendor
i2A Proyectos Informáticos, S.A.
Product
i2A-Cronos
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 26, 2025CVE publishedPublication date reported by the CVE source.
  2. May 27, 2025Record 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=23.02.01.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

i2A Proyectos Informáticos, S.A. · i2A-Cronosversion=23.02.01.17

Published CVSS scores

5.1INCIBE-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

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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