CVE-2026-10153Public exploitNetwork attack vector

Administrator creation via reflected search parameter

Published May 30, 2026 · Updated May 30, 2026

Reflected XSS in CicadasCMS 2431154dac8d0735e04f1fd2a3c3556668fc8dab allows remote attackers to execute script via the search s parameter. The search method reflects a nonnumeric s value into an error response without HTML encoding, causing the browser to treat injected markup as script. A victim must follow a crafted link while logged in as an administrator; the demonstrated script calls the unprotected user-update endpoint to create an administrator account.

CVSS severity4.3
Medium
EPSS probability0.28%
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 CicadasCMS 2431154dac8d0735e04f1fd2a3c3556668fc8dab allows remote attackers to execute script via the search s parameter. The search method reflects a nonnumeric s value into an error response without HTML encoding, causing the browser to treat injected markup as script. A victim must follow a crafted link while logged in as an administrator; the demonstrated script calls the unprotected user-update endpoint to create an administrator account.

The record

CVE
CVE-2026-10153
Published
May 30, 2026
Updated
May 30, 2026
Vendor
westboy
Product
CicadasCMS
Classifications
CWE-94, CWE-79, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 30, 2026CVE publishedPublication date reported by the CVE source.
  2. May 30, 2026Record 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=2431154dac8d0735e04f1fd2a3c3556668fc8dab

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

westboy · CicadasCMSversion=2431154dac8d0735e04f1fd2a3c3556668fc8dab

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

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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