CVE-2021-42119Network attack vector

Account takeover via stored search-result script execution

Published Nov 30, 2021 · Updated Aug 4, 2024

Stored XSS in Business-DNA Solutions GmbH TopEase 7.1.27 and earlier allows remote authenticated users to steal session cookies. Object attributes accept arbitrary HTML and JavaScript without adequate neutralization, and Search later renders that stored content. Object Modification privileges are required to plant the payload, and another user's search view must execute it before account takeover.

CVSS severity7.3
High
EPSS probability0.51%
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 Business-DNA Solutions GmbH TopEase 7.1.27 and earlier allows remote authenticated users to steal session cookies. Object attributes accept arbitrary HTML and JavaScript without adequate neutralization, and Search later renders that stored content. Object Modification privileges are required to plant the payload, and another user's search view must execute it before account takeover.

The record

CVE
CVE-2021-42119
Published
Nov 30, 2021
Updated
Aug 4, 2024
Vendor
Business-DNA Solutions GmbH
Product
TopEase
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=unspecified <=7.1.27

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Business-DNA Solutions GmbH · TopEaseversion=unspecified <=7.1.27

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
7.3NCSC.chCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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