CVE-2023-34941Public exploitNetwork attack vector

Stored script execution via unencoded URL keyword

Published Jun 12, 2023 · Updated Oct 28, 2024

Stored XSS in the urlFilterList function of ASUS RT-N10LX Router 2.0.0.39 allows remote authenticated users to execute script. The function passes the POSTed url value from formFilter into an fprintf %s field without HTML encoding, so the browser interprets the stored value as markup. Access to the router management interface and a later view of the URL Keyword List are required, allowing script execution in that viewer's browser.

CVSS severity5.4
Medium
EPSS probability23.80%
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 the urlFilterList function of ASUS RT-N10LX Router 2.0.0.39 allows remote authenticated users to execute script. The function passes the POSTed url value from formFilter into an fprintf %s field without HTML encoding, so the browser interprets the stored value as markup. Access to the router management interface and a later view of the URL Keyword List are required, allowing script execution in that viewer's browser.

The record

CVE
CVE-2023-34941
Published
Jun 12, 2023
Updated
Oct 28, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A: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')
T1059.007JavaScript/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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