CVE-2024-41587Public exploitNetwork attack vector

Authenticated stored XSS via unsanitized greeting message

Published Oct 3, 2024 · Updated Mar 18, 2025

Stored XSS in DrayTek Vigor3910 4.3.2.6 and earlier allows remote authenticated users to run script in login-page viewers. The Web UI stores insufficiently sanitized input from the custom Login Page Greeting field and inserts it into the page shown to every user who logs in. A valid management account is required to plant the payload, and a later user must view the login page, exposing that viewer's browser session to attacker-controlled script.

CVSS severity5.4
Medium
EPSS probability0.25%
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 DrayTek Vigor3910 4.3.2.6 and earlier allows remote authenticated users to run script in login-page viewers. The Web UI stores insufficiently sanitized input from the custom Login Page Greeting field and inserts it into the page shown to every user who logs in. A valid management account is required to plant the payload, and a later user must view the login page, exposing that viewer's browser session to attacker-controlled script.

The record

CVE
CVE-2024-41587
Published
Oct 3, 2024
Updated
Mar 18, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 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?

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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