Security readout for executives and security teams
Plain-English summary
Combodo iTop before 3.0.0-beta6 could place attacker-controlled JavaScript into generated CSV output because user-supplied export parameters were not escaped correctly. The risk is serious if an exposed iTop beta deployment is used for CSV workflows, but the provided sources do not report active exploitation.
Executive priority
Prioritize remediation for any iTop beta deployment still below 3.0.0-beta6. The business concern is not service outage; it is potential compromise of user sessions or sensitive data through malicious script execution after user interaction.
Technical view
This is a CWE-79 cross-site scripting issue in iTop CSV export handling before 3.0.0-beta6. The CVSS 3.1 vector is network-accessible, low complexity, no privileges required, user interaction required, scope changed, with high confidentiality and integrity impact and no availability impact.
Likely exposure
Exposure is limited to Combodo iTop versions earlier than 3.0.0-beta6, especially beta deployments where users open rendered CSV output from exported data. The bundle provides no CPEs or deployment prevalence data, so internet-wide exposure cannot be estimated from these sources.
Exploitation context
The issue requires a user to interact with affected CSV output. KEV is false, and the supplied sources do not state that exploitation is active in the wild. Treat this as a high-impact stored or reflected content-handling risk, not as a confirmed mass-exploitation event.
Researcher notes
The advisory attributes the flaw to insufficient escaping of user-supplied parameters in CSV export rendering. The CVSS vector indicates no privileges are required, but user interaction is. The source bundle names upgrade guidance and no workaround, but provides no confirmed exploit activity or prevalence data.
Mitigation direction
- Upgrade affected iTop deployments to 3.0.0-beta6 or later.
- Prioritize externally reachable or business-critical iTop instances.
- If upgrade timing is blocked, check current Combodo guidance.
- Do not rely on workarounds; the source says none are known.
- Restrict access to affected beta instances until upgraded.
Validation and detection
- Inventory iTop deployments and record exact versions.
- Confirm no production system runs below 3.0.0-beta6.
- Review CSV export workflows for untrusted user-supplied parameters.
- Verify the vendor fix is present in upgraded code.
- Check logs for unusual CSV export activity where available.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-41161 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N2.85.8Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.3CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/Combodo/iTop/security/advisories/GHSA-788f-g6g9-f8fcCVE reference · x_refsource_CONFIRM
- https://github.com/Combodo/iTop/commit/c8f3d23d30c018bc44189b38fa34a5fffb4edb22CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.