CVE-2021-41161Network attack vector

Cross-site scripting via unescaped CSV parameters

Published Apr 21, 2022 · Updated Apr 23, 2025

Cross-site scripting in Combodo iTop before 3.0.0-beta6 allows remote attackers to execute script via crafted export CSV parameters. The pages/csvimport.php handler accepted csvdata with a raw-data filter, allowing supplied values to reach rendered CSV content without proper escaping; the patch applies a string sanitization filter. Exploitation requires a victim to open or render the crafted CSV, so impact is script execution in that victim context rather than direct server compromise.

CVSS severity6.1
Medium
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site scripting in Combodo iTop before 3.0.0-beta6 allows remote attackers to execute script via crafted export CSV parameters. The pages/csvimport.php handler accepted csvdata with a raw-data filter, allowing supplied values to reach rendered CSV content without proper escaping; the patch applies a string sanitization filter. Exploitation requires a victim to open or render the crafted CSV, so impact is script execution in that victim context rather than direct server compromise.

The record

CVE
CVE-2021-41161
Published
Apr 21, 2022
Updated
Apr 23, 2025
Vendor
Combodo
Product
iTop
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.0.0-beta6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Combodo · iTopversion=< 3.0.0-beta6

Published CVSS scores

4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
9.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo