CVE-2024-2857Public exploitNetwork attack vector

Administrator-session script execution via unsanitized button CSS

Published Apr 15, 2024 · Updated Aug 9, 2024

Stored XSS in Robby Chen Simple Buttons Creator 1.04 and earlier allows remote attackers to execute script in an administrator's browser. The unauthenticated bt-manage.php add-button endpoint accepts the bt_css field without authorization, sanitization, or output escaping and stores it for the edit page. Execution occurs when a logged-in administrator opens the crafted button's edit view, allowing script to act in that administrator's WordPress session.

CVSS severity6.1
Medium
EPSS probability0.24%
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 Robby Chen Simple Buttons Creator 1.04 and earlier allows remote attackers to execute script in an administrator's browser. The unauthenticated bt-manage.php add-button endpoint accepts the bt_css field without authorization, sanitization, or output escaping and stores it for the edit page. Execution occurs when a logged-in administrator opens the crafted button's edit view, allowing script to act in that administrator's WordPress session.

The record

CVE
CVE-2024-2857
Published
Apr 15, 2024
Updated
Aug 9, 2024
Vendor
Robby Chen
Product
Simple Buttons Creator
Classifications
CWE-352, CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 9, 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=0 <=1.04

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Robby Chen · Simple Buttons Creatorversion=0 <=1.04

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-352Cross-Site Request Forgery (CSRF)
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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