CVE-2025-23522Network attack vector

Reflected script execution in victim browsers

Published Jan 24, 2025 · Updated Apr 28, 2026

Reflected XSS in Matthew Haines-Young HM Portfolio 1.1.1 and earlier allows remote attackers to execute script through crafted requests. The public CNA record and its sole advisory reference do not identify the affected request parameter or the output operation that reflects it without escaping. Exploitation is unauthenticated but requires a user to follow a malicious link or otherwise submit the crafted request, enabling script execution in that user's browser.

CVSS severity7.1
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Matthew Haines-Young HM Portfolio 1.1.1 and earlier allows remote attackers to execute script through crafted requests. The public CNA record and its sole advisory reference do not identify the affected request parameter or the output operation that reflects it without escaping. Exploitation is unauthenticated but requires a user to follow a malicious link or otherwise submit the crafted request, enabling script execution in that user's browser.

The record

CVE
CVE-2025-23522
Published
Jan 24, 2025
Updated
Apr 28, 2026
Vendor
Matthew Haines-Young
Product
HM Portfolio
Classifications
CWE-79, CAPEC-591, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 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 <=1.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Matthew Haines-Young · HM Portfolioversion=0 <=1.1.1

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1059.007JavaScript/JScript

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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