CVE-2024-45621

5.4 mediumEPSS 0.3%

Medium (5.4) in rocket.chat rocket.chat. EPSS 0.3% chance of exploitation in the next 30 days.

The Electron desktop application of Rocket.Chat through 6.3.4 allows stored XSS via links in an uploaded file, related to failure to use a separate browser upon encountering third-party external actions from PDF documents.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2024-09-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

rocket.chat:rocket.chat

References

https://github.com/RocketChat/Rocket.Chat/releases/tag/6.3.4
https://hackerone.com/reports/1967109

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