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CVE-2026-23839

Leepeuker Movary cross-site scripting (XSS)

9.3 CRITICALPublic exploitEPSS 0.31%
  1. Published19 Jan 2026

Description

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 `?categoryUpdated=`. Version 0.70.0 fixes the issue.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Affected products

Leepeuker Movary< 0.70.0

Remediation

Fixed in
Leepeuker Movary≥ 0.70.0

References

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Frequently asked

Is CVE-2026-23839 being actively exploited?

CVE-2026-23839 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.31%.

How severe is CVE-2026-23839?

CVE-2026-23839 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 0.31% probability of exploitation.

Which products are affected by CVE-2026-23839?

Affected products include Leepeuker Movary.

How do I fix CVE-2026-23839?

Upgrade affected software to a fixed version, for example Leepeuker Movary 0.70.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-23839 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.