CVE-2024-6667Public exploitNetwork attack vector

Administrator-session script execution via unescaped cow parameter

Published May 15, 2025 · Updated May 17, 2025

Reflected XSS in Optimal Access KBucket before 4.1.5 allows remote attackers to execute script in an administrator's browser. The KBucket admin page reflects the cow query parameter into HTML without sanitizing or escaping it, enabling script injection. Exploitation requires an administrator to open a crafted URL in a browser that does not encode the payload, exposing or altering data in that session.

CVSS severity6.1
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

Reflected XSS in Optimal Access KBucket before 4.1.5 allows remote attackers to execute script in an administrator's browser. The KBucket admin page reflects the cow query parameter into HTML without sanitizing or escaping it, enabling script injection. Exploitation requires an administrator to open a crafted URL in a browser that does not encode the payload, exposing or altering data in that session.

The record

CVE
CVE-2024-6667
Published
May 15, 2025
Updated
May 17, 2025
Vendor
Optimal Access
Product
KBucket
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2025CVE publishedPublication date reported by the CVE source.
  2. May 17, 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 <4.1.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Optimal Access · KBucketversion=0 <4.1.5

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
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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