CVE-2024-54433Network attack vector

Stored XSS via cross-site request forgery

Published Dec 16, 2024 · Updated Apr 28, 2026

Cross-site request forgery in Marcel CL Simple Booking Widget 1.1 and earlier allows remote attackers to store cross-site scripting payloads. Patchstack has not published the affected handler or explained which request data is accepted without anti-CSRF validation before persistent output is created. Exploitation requires a privileged WordPress user to visit or submit attacker-controlled content, after which the stored payload executes in a later browser session.

CVSS severity7.1
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Marcel CL Simple Booking Widget 1.1 and earlier allows remote attackers to store cross-site scripting payloads. Patchstack has not published the affected handler or explained which request data is accepted without anti-CSRF validation before persistent output is created. Exploitation requires a privileged WordPress user to visit or submit attacker-controlled content, after which the stored payload executes in a later browser session.

The record

CVE
CVE-2024-54433
Published
Dec 16, 2024
Updated
Apr 28, 2026
Vendor
Marcel CL
Product
Simple Booking Widget
Classifications
CWE-352, CAPEC-592
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=0 <=1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Marcel CL · Simple Booking Widgetversion=0 <=1.1

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-592Stored XSS

Public exploit references

No public exploit references are available in this record.

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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