Cross-Site Scripting Vulnerability in Movary Web Application
CVE-2026-23840

9.3CRITICAL

Key Information:

Vendor

Leepeuker

Status
Movary
Vendor
CVE Published:
19 January 2026

What is CVE-2026-23840?

Movary, a web application designed for tracking and rating movies, is susceptible to cross-site scripting (XSS) attacks due to insufficient input validation in versions prior to 0.70.0. Attackers can exploit this vulnerability by injecting malicious scripts through the 'categoryDeleted' parameter. It is crucial for users to update to version 0.70.0, which resolves this security issue and mitigates the risk of XSS attacks.

Affected Version(s)

movary < 0.70.0

References

https://github.com/leepeuker/movary/security/advisories/G...
x_refsource_CONFIRM
https://github.com/leepeuker/movary/blob/main/public/js/s...
x_refsource_MISC
https://github.com/leepeuker/movary/releases/tag/0.70.0
x_refsource_MISC

CVSS V3.1

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.