CVE-2025-71166Public exploitNetwork attack vector

Authenticated script execution via unencoded path reflection

Published Jan 14, 2026 · Updated Jan 14, 2026

Reflected XSS in Typesetter CMS 5.1 and earlier allows remote authenticated users to execute scripts through a crafted path parameter. The Tools Status move-message handler in include/admin/Tools/Status.php inserts path into HTML output without context-appropriate encoding. An authenticated request is required, and successful exploitation runs attacker-supplied JavaScript in an authenticated user's browser session, enabling session data access or actions with that user's privileges.

CVSS severity4.8
Medium
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 Typesetter CMS 5.1 and earlier allows remote authenticated users to execute scripts through a crafted path parameter. The Tools Status move-message handler in include/admin/Tools/Status.php inserts path into HTML output without context-appropriate encoding. An authenticated request is required, and successful exploitation runs attacker-supplied JavaScript in an authenticated user's browser session, enabling session data access or actions with that user's privileges.

The record

CVE
CVE-2025-71166
Published
Jan 14, 2026
Updated
Jan 14, 2026
Vendor
Typesetter
Product
Typesetter CMS
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 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 <=5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Typesetter · Typesetter CMSversion=0 <=5.1

Published CVSS scores

4.8VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

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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