CVE-2025-23861Network attack vector

Stored XSS via forged privileged-user request

Published Jan 16, 2025 · Updated May 11, 2026

CSRF in Zack Katz Debt Calculator 1.0.1 and earlier allows remote attackers to store script code through a forged request. Published materials do not identify the affected endpoint or state-changing operation, or explain how submitted input reaches stored output. Exploitation requires a logged-in privileged user to open attacker-controlled content; the stored script then executes in visitors' browsers.

CVSS severity7.1
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in Zack Katz Debt Calculator 1.0.1 and earlier allows remote attackers to store script code through a forged request. Published materials do not identify the affected endpoint or state-changing operation, or explain how submitted input reaches stored output. Exploitation requires a logged-in privileged user to open attacker-controlled content; the stored script then executes in visitors' browsers.

The record

CVE
CVE-2025-23861
Published
Jan 16, 2025
Updated
May 11, 2026
Vendor
Zack Katz
Product
Debt Calculator
Classifications
CWE-352, CAPEC-62, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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 <=1.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zack Katz · Debt Calculatorversion=0 <=1.0.1

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-62Cross Site Request Forgery
T1189Drive-by Compromise

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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