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CVE-2026-66591: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in David Lingren Media LIbrary Assistant

0
Medium
VulnerabilityCVE-2026-66591cvecve-2026-66591cwe-79
Published: 08/18/2026 (08/18/2026, 22:15:08 UTC)
Source: CVE Database V5
Vendor/Project: David Lingren
Product: Media LIbrary Assistant

Description

CVE-2026-66591 is a stored cross-site scripting (XSS) vulnerability in David Lingren Media LIbrary Assistant. It arises from improper neutralization of input during web page generation. The vulnerability affects versions up to and including 3.39. Exploitation could lead to partial confidentiality, integrity, and availability impacts. The CVSS score is 6.5, indicating a medium severity level.

CVSS v3.1

Score 6.5medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Affected software

David Lingren

Media LIbrary Assistant

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 10:18:54 UTC

Technical Analysis

This vulnerability in David Lingren Media LIbrary Assistant is due to improper neutralization of input during web page generation, classified as CWE-79 (Cross-site Scripting). It allows an attacker to inject malicious scripts that are stored and later executed in the context of users' browsers. The affected versions include all versions up to 3.39. The CVSS v3.1 score is 6.5 with vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L, indicating network attack vector, low attack complexity, requires low privileges and user interaction, with scope changed and low impact on confidentiality, integrity, and availability.

Potential Impact

Successful exploitation can lead to stored XSS attacks, allowing attackers to execute arbitrary scripts in the context of affected users. This can result in partial compromise of confidentiality, integrity, and availability of the affected system or user data. However, there are no known exploits in the wild at this time.

Mitigation Recommendations

No vendor advisory or patch information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should apply standard XSS mitigations such as input validation and output encoding where possible.

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Technical Details

Data Version
5.2
Assigner Short Name
Patchstack
Date Reserved
2026-07-27T14:00:04.572Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a84de12c6e8be0332d66c73

Added to database: 08/18/2026, 22:34:58 UTC

Last enriched: 09/11/2026, 10:18:54 UTC

Last updated: 10/02/2026, 02:46:05 UTC

Views: 59

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