CVE-2026-42757
Path traversal flaw in WebinarIgnition exposes restricted server files
Is CVE-2026-42757 being exploited?
Not confirmed. CVE-2026-42757 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 0.36% probability of exploitation in the next 30 days.
How severe is CVE-2026-42757?
CVE-2026-42757 is rated Critical with a CVSS score of 9.9. 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-2026-42757?
Yes. A fix has been recorded for CVE-2026-42757. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-42757 affect?
CVE-2026-42757 affects SalesWonder Team WebinarIgnition (<4.08.253). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-42757?
Upgrade to 4.08.253 or newer immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthorized path traversal could read restricted server files via crafted URLs.
Immediate action required
- affected<= 4.08.253
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.