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Description

Easy Chat Server 3.1 contains a denial of service vulnerability that allows remote attackers to crash the application by sending oversized data in the message parameter. Attackers can establish a session via the chat.ghp endpoint and then send a POST request to body2.ghp with an excessively large message parameter value to cause the service to crash.

PUBLISHED Reserved 2026-03-22 | Published 2026-03-22 | Updated 2026-03-23 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Improper Verification of Source of a Communication Channel

Product status

3.1
affected

Credits

Miguel Mendez Z finder

References

www.exploit-db.com/exploits/46806 (ExploitDB-46806) exploit

www.echatserver.com (Official Product Homepage) product

www.echatserver.com/ecssetup.exe (Product Reference) product

www.vulncheck.com/...denial-of-service-via-message-parameter (VulnCheck Advisory: Easy Chat Server 3.1 Denial of Service via message Parameter) third-party-advisory

cve.org (CVE-2019-25613)

nvd.nist.gov (CVE-2019-25613)

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