Privilege escalation in Wongcyrus Excellexbot
CVE-2026-19360
A vulnerability was detected in wongcyrus ExcelLexBot up to 0.0.3. This affects the function ExcelLexBotS3TriggerFunction of the component Lambda Function Handler. Performing a manipulation results in improper privilege management. The attack may be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (12.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Wongcyrus Excellexbot — versions 0.0.1, 0.0.2, 0.0.3
Weakness classification (CWE)
References
- vuldb.com/cve/CVE-2026-19360 (third-party-advisory)
- vuldb.com/submit/866026 (third-party-advisory)
- vuldb.com/vuln/387214 (technical-description, vdb-entry)
- vuldb.com/vuln/387214/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-19360?
- CVE-2026-19360 is a medium-severity vulnerability in Wongcyrus Excellexbot, classified under Incorrect Privilege Assignment. CVSS score: 4.7/10. Published 2026-08-09.
- How severe is CVE-2026-19360?
- Medium severity. CVSS v3 base score is 4.7 out of 10.