CVE-2025-23659Network attack vector

Stored cross-site scripting via forged privileged request

Published Jan 16, 2025 · Updated Apr 28, 2026

Cross-site request forgery in MercadoLibre Integration 1.1 and earlier allows remote attackers to plant stored script via a forged request. Patchstack has not disclosed the affected handler, request parameter, or the validation and output-encoding operations that permit the script to be stored. Exploitation requires a privileged user to interact with attacker-controlled content; the stored script then executes for later site visitors.

CVSS severity7.1
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in MercadoLibre Integration 1.1 and earlier allows remote attackers to plant stored script via a forged request. Patchstack has not disclosed the affected handler, request parameter, or the validation and output-encoding operations that permit the script to be stored. Exploitation requires a privileged user to interact with attacker-controlled content; the stored script then executes for later site visitors.

The record

CVE
CVE-2025-23659
Published
Jan 16, 2025
Updated
Apr 28, 2026
Vendor
Hernan Javier Hegykozi
Product
MercadoLibre Integration
Classifications
CWE-352, CAPEC-592, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 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 <=1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hernan Javier Hegykozi · MercadoLibre Integrationversion=0 <=1.1

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)
CAPEC-592Stored XSS
T1204.001User Execution: Malicious Link

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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