CVE-2019-6503

9.8 criticalEPSS 2.2%

Critical (9.8) in chatopera cosin. EPSS 2.2% chance of exploitation in the next 30 days.

There is a deserialization vulnerability in Chatopera cosin v3.10.0. An attacker can execute commands during server-side deserialization by uploading maliciously constructed files. This is related to the TemplateController.java impsave method and the MainUtils toObject method.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2019-01-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

chatopera:cosin

References

https://github.com/chatopera/cosin/issues/177
https://github.com/chatopera/cosin/issues/177

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