CVE-2024-4993Network attack vector

Session cookie theft via reflected query input

Published May 16, 2024 · Updated Aug 1, 2024

Cross-site scripting in SiAdmin 1.1 allows remote attackers to steal an authenticated user's session cookie through a crafted show.php URL. The show.php endpoint places query input into the generated page without adequate output neutralization, causing attacker-supplied script to execute in the user's browser. Exploitation requires an authenticated user to open the crafted URL, and the documented consequence is theft of that user's session credentials.

CVSS severity6.3
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in SiAdmin 1.1 allows remote attackers to steal an authenticated user's session cookie through a crafted show.php URL. The show.php endpoint places query input into the generated page without adequate output neutralization, causing attacker-supplied script to execute in the user's browser. Exploitation requires an authenticated user to open the crafted URL, and the documented consequence is theft of that user's session credentials.

The record

CVE
CVE-2024-4993
Published
May 16, 2024
Updated
Aug 1, 2024
Vendor
SiAdmin
Product
SiAdmin
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SiAdmin · SiAdminversion=1.1

Published CVSS scores

5.4NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
6.3Spanish National Cybersecurity Institute, S.A. (INCIBE)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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