CVE-2023-50832Network attack vector

Stored script execution via paragraph block HTML

Published Dec 21, 2023 · Updated Apr 28, 2026

Stored XSS in Mondula GmbH Multi Step Form 1.7.13 and earlier allows remote authenticated users to execute script in visitors' browsers. The paragraph block accepts and stores administrator-supplied HTML, then renders that content in embedded forms without neutralizing executable markup. Administrative form-editing access is required to plant the payload, and a visitor must view the affected form; script runs in that visitor's browser context.

CVSS severity5.9
Medium
EPSS probability0.40%
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 Mondula GmbH Multi Step Form 1.7.13 and earlier allows remote authenticated users to execute script in visitors' browsers. The paragraph block accepts and stores administrator-supplied HTML, then renders that content in embedded forms without neutralizing executable markup. Administrative form-editing access is required to plant the payload, and a visitor must view the affected form; script runs in that visitor's browser context.

The record

CVE
CVE-2023-50832
Published
Dec 21, 2023
Updated
Apr 28, 2026
Vendor
Mondula GmbH
Product
Multi Step Form
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 21, 2023CVE 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=n/a <=1.7.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Mondula GmbH · Multi Step Formversion=n/a <=1.7.13

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
5.9PatchstackCVSS:3.1/AV:N/AC:L/PR:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1059.007JavaScript/JScript

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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