EUVD-2026-64084Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Reflected XSS via network with low-privilege auth and required user click; availability impact reduced to Low as XSS does not directly disrupt service.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
4DescriptionCVE.org
Combodo iTop is a web based IT service management tool. Prior to 3.2.3, 3.2.3, there is a Reflected Cross-Site Scripting (XSS) vulnerability in pages/tagadmin.php. This issue has been fixed in version 3.2.3.
AnalysisAI
Reflected Cross-Site Scripting in Combodo iTop's tagadmin.php page allows an authenticated attacker to craft a malicious URL that, when visited by another authenticated user, executes arbitrary JavaScript in their browser session. All iTop installations prior to version 3.2.3 are affected, with the vulnerability root-caused to the $sFilter request parameter being reflected into HTML output without sanitization. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two prerequisites: (1) the attacker must socially engineer an already-authenticated iTop user (PR:L per CVSS vector) into clicking a crafted URL - unauthenticated users cannot trigger the vulnerability because the tagadmin.php page requires login; (2) the victim must actively interact with the malicious link (UI:R per CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-assigned CVSS 3.1 score of 8.0 (AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H) requires both an authenticated user (PR:L) and victim interaction (UI:R), which meaningfully constrains exploitation compared to unauthenticated or zero-click vulnerabilities. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to Combodo iTop version 3.2.3 or later, which includes the fix documented in commit ab8e7bd15ed251ad4fbe8d4d1b17474b2d688fba - the addition of `utils::EscapeHtml($sFilter)` in pages/tagadmin.php. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all iTop deployments and document current versions to identify affected systems prior to version 3.2.3. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
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External POC / Exploit Code
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