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Movary CVE-2026-23840

CRITICAL
Improper Input Validation (CWE-20)
2026-01-19 security-advisories@github.com
9.3
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
9.3 CRITICAL
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Feb 03, 2026 - 14:47 vuln.today
Public exploit code
CVE Published
Jan 19, 2026 - 19:16 nvd
CRITICAL 9.3

DescriptionGitHub Advisory

Movary is a web application to track, rate and explore your movie watch history. Due to insufficient input validation, attackers can trigger cross-site scripting payloads in versions prior to 0.70.0. The vulnerable parameter is ?categoryDeleted=. Version 0.70.0 fixes the issue.

AnalysisAI

Movary has a second input validation vulnerability allowing authenticated users to write arbitrary files on the server, enabling code execution through web shell upload.

Technical ContextAI

A separate CWE-20 input validation flaw in Movary allows authenticated users to write files to arbitrary locations on the server, complementing the file read vulnerability in CVE-2026-23839.

RemediationAI

Update Movary. Implement strict file path validation and restrict write permissions.

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CVE-2026-23840 vulnerability details – vuln.today

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