CVE-2024-42020Network attack vector

Authenticated HTML injection via Reporter Widgets

Published Sep 7, 2024 · Updated Oct 27, 2024

Cross-site scripting in Veeam ONE Reporter Widgets through 12.1.0.3208 allows remote authenticated users to inject HTML. The Reporter Widgets component renders attacker-supplied HTML without adequate neutralization; Veeam has not disclosed the affected request, field, or rendering function. A low-privileged account and user interaction are required, and public sources do not identify the injected markup’s precise effect.

CVSS severity7.3
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Veeam ONE Reporter Widgets through 12.1.0.3208 allows remote authenticated users to inject HTML. The Reporter Widgets component renders attacker-supplied HTML without adequate neutralization; Veeam has not disclosed the affected request, field, or rendering function. A low-privileged account and user interaction are required, and public sources do not identify the injected markup’s precise effect.

The record

CVE
CVE-2024-42020
Published
Sep 7, 2024
Updated
Oct 27, 2024
Vendor
Veeam Software
Product
Veeam ONE
Classifications
CWE-79, T1204
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 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=12.1 <=12.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Veeam Software · Veeam ONEversion=12.1 <=12.1

Published CVSS scores

7.3VeeamCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204User Execution

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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