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CVE-2026-19360: Improper Privilege Management in wongcyrus ExcelLexBot

0
Medium
VulnerabilityCVE-2026-19360cvecve-2026-19360
Published: 08/09/2026 (08/09/2026, 17:00:08 UTC)
Source: CVE Database V5
Vendor/Project: wongcyrus
Product: ExcelLexBot

Description

CVE-2026-19360 is a medium severity vulnerability in wongcyrus ExcelLexBot versions 0.0.1, 0.0.2, and 0.0.3 affecting the Lambda Function Handler component. It involves improper privilege management in the ExcelLexBotS3TriggerFunction, which can be exploited remotely. The product is no longer supported by the maintainer, and the vendor did not respond to disclosure attempts. The service is cloud-hosted, and a patch is indicated as available.

CVSS v4.0

Score 5.1medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
Low
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X

Affected software

wongcyrus

ExcelLexBot

Affected versions
=0.0.1=0.0.2=0.0.3
wongcyrus/excellexbot
pkg:npm/wongcyrus/excellexbot
Affected versions
=0.0.1=0.0.2=0.0.3
CPE configurations
cpe:2.3:a:wongcyrus:excellexbot:*:*:*:*:*:*:*:*

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/17/2026, 15:55:54 UTC

Technical Analysis

This vulnerability in wongcyrus ExcelLexBot up to version 0.0.3 affects the Lambda Function Handler's ExcelLexBotS3TriggerFunction component, allowing improper privilege management. The flaw can be triggered remotely without user interaction, potentially leading to limited confidentiality, integrity, and availability impacts. The product is no longer maintained, and the vendor did not respond to the vulnerability disclosure. The affected product is a cloud service, which typically implies vendor-managed remediation.

Potential Impact

The vulnerability allows improper privilege management remotely, which could lead to unauthorized actions within the affected Lambda function context. The CVSS 4.0 score of 5.1 (medium) reflects limited impact on confidentiality, integrity, and availability. No known exploits are reported in the wild. Since the product is no longer supported, risk may persist if unpatched.

Mitigation Recommendations

A patch is available for this vulnerability. Because the product is a cloud service, the vendor typically manages remediation server-side. However, the vendor did not respond to disclosure, and the product is no longer supported. Users should verify with the vendor or cloud service provider that the patch has been applied or consider discontinuing use of the affected versions.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-08-08T18:58:56.459Z
Cvss Version
4.0
State
PUBLISHED
Is Cloud Service
true

Threat ID: 6a78b896bf8831d539fa67b5

Added to database: 08/09/2026, 17:27:50 UTC

Last enriched: 08/17/2026, 15:55:54 UTC

Last updated: 09/22/2026, 01:54:38 UTC

Views: 59

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