Review reviewCritical
CVE-2026-65461
Webの相談所 Really Simple CSV Importer
Administrator Arbitrary File Upload in Really Simple CSV Importer <= 1.3 versions.
- CVSS
- 9.1
- EPSS
- - - percentile
- CISA KEV
- Not listed
- Published
- 2026.07.23
Review review
The CVSS severity warrants an early asset and exposure review.
Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 9.1
Vulnerability overview
Administrator Arbitrary File Upload in Really Simple CSV Importer <= 1.3 versions.
Affected product and versions
- Product
- Webの相談所 Really Simple CSV Importer
- Affected versions
- <= 1.3
- Fixed versions
- No verified fixed-version field is available yet
Recommended response sequence
Confirm exposure before applying a vendor-supported change.
- 1Identify
Confirm that Webの相談所 Really Simple CSV Importer and an affected version are present.
- 2Prioritize
Combine exploitation signals with asset exposure and business criticality.
- 3Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
- 4Verify
Recheck the version, service health, access paths, and relevant logs.
Technical data
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- CWE
- CWE-434