CVE-2026-31803
Reflected XSS in Combodo iTop tagadmin.php (fixed in 3.2.3)
Is CVE-2026-31803 being exploited?
Not confirmed. CVE-2026-31803 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.23% probability of exploitation in the next 30 days.
How severe is CVE-2026-31803?
CVE-2026-31803 is rated High with a CVSS score of 8.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-31803?
Yes. A fix has been recorded for CVE-2026-31803. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-31803 affect?
CVE-2026-31803 affects Combodo iTop versions prior to 3.2.3, iTop <= 3.2.2. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-31803?
Upgrade iTop to 3.2.3 and restrict access to admin pages; validate/sanitize inputs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Reflected XSS allows remote attackers to run JavaScript in victims' browsers, enabling cookie theft, session hijack, or actions as the user.
Patch when possible
- affected< 3.2.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.