CVE-2024-30886Public exploitNetwork attack vector

Stored script execution via unsanitized remote link URL

Published Apr 23, 2024 · Updated Aug 7, 2024

Stored XSS in HadSky 7.6.3 allows remote authenticated users to execute scripts in another user's browser through a crafted URL. The remotelink action stores the url parameter without sanitization, and a leading carriage return suppresses the redirect Location header so the download action renders the saved script. A victim must follow the generated download link; the script then runs in the HadSky origin and can read browser-accessible session data or act as the victim.

CVSS severity5.4
Medium
EPSS probability0.33%
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 HadSky 7.6.3 allows remote authenticated users to execute scripts in another user's browser through a crafted URL. The remotelink action stores the url parameter without sanitization, and a leading carriage return suppresses the redirect Location header so the download action renders the saved script. A victim must follow the generated download link; the script then runs in the HadSky origin and can read browser-accessible session data or act as the victim.

The record

CVE
CVE-2024-30886
Published
Apr 23, 2024
Updated
Aug 7, 2024
Vendor
PuYueTian
Product
HadSky
Classifications
CWE-79, CAPEC-592, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.6.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PuYueTian · HadSkyversion=7.6.3

Published CVSS scores

5.4CISA-ADPCVSS: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.

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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')
CAPEC-592Stored XSS
T1204.001Malicious Link

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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