CVE-2024-1663Public exploitNetwork attack vector

Stored XSS via unescaped noindex settings

Published May 15, 2025 · Updated May 20, 2025

Stored XSS in Texttheater Ultimate Noindex Nofollow Tool II before 1.3.6 allows remote authenticated users to execute scripts via settings. The plugin stores the unn_noindex_pages setting without sanitizing it and renders it into a settings-page textarea without output escaping. Administrator access is required, and the injected script runs when the affected settings page is rendered even where unfiltered_html is disabled.

CVSS severity4.8
Medium
EPSS probability0.31%
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 Texttheater Ultimate Noindex Nofollow Tool II before 1.3.6 allows remote authenticated users to execute scripts via settings. The plugin stores the unn_noindex_pages setting without sanitizing it and renders it into a settings-page textarea without output escaping. Administrator access is required, and the injected script runs when the affected settings page is rendered even where unfiltered_html is disabled.

The record

CVE
CVE-2024-1663
Published
May 15, 2025
Updated
May 20, 2025
Vendor
Kilian Evang
Product
Ultimate Noindex Nofollow Tool II
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 15, 2025CVE publishedPublication date reported by the CVE source.
  2. May 20, 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=0 <1.3.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Kilian Evang · Ultimate Noindex Nofollow Tool IIversion=0 <1.3.6

Published CVSS scores

4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/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.

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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
Privilegesadmin
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

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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