What is CVE-2019-6503?

CVE-2019-6503 is a critical-severity vulnerability in Chatopera Cosin, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-01-22.

How severe is CVE-2019-6503?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2019-6503 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Chatopera Cosin

CVE-2019-6503

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.022 (80.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Chatopera Cosin — versions 3.10.0
N/a — versions n/a

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

PalindromeLabs/Java-Deserialization-CVEs

References

cve@mitre.org (x_refsource_CONFIRM, Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2019-6503?: CVE-2019-6503 is a critical-severity vulnerability in Chatopera Cosin, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-01-22.
How severe is CVE-2019-6503?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-6503 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.