CVE-2021-43960Public exploitNetwork attack vector

Stored script execution via unsanitized Wizard fields

Published Jan 12, 2022 · Updated Aug 4, 2024

Stored XSS in Lorensbergs Connect2 3.13.7647.20190 allows remote authenticated users to execute scripts in booking users' browsers. The Wizard editor stores administrator-supplied Page title, Page Instructions, and surrounding text fields, then renders them in the booking area without neutralizing script payloads. Exploitation requires administrator privileges, saving a crafted field, and a subsequent rental-item booking by another user; the vendor maintains that administrators require JavaScript customization capability.

CVSS severity4.8
Medium
EPSS probability0.59%
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 Lorensbergs Connect2 3.13.7647.20190 allows remote authenticated users to execute scripts in booking users' browsers. The Wizard editor stores administrator-supplied Page title, Page Instructions, and surrounding text fields, then renders them in the booking area without neutralizing script payloads. Exploitation requires administrator privileges, saving a crafted field, and a subsequent rental-item booking by another user; the vendor maintains that administrators require JavaScript customization capability.

The record

CVE
CVE-2021-43960
Published
Jan 12, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 12, 2022CVE 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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