register.ghp in EFS Software Easy Chat Server versions 2.0 to 3.1 allows remote attackers…
Priority LOW 36CWE-640Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-640.
Summary
register.ghp in EFS Software Easy Chat Server versions 2.0 to 3.1 allows remote attackers to reset arbitrary passwords via a crafted POST request to registresult.htm.
Why it matters now
EPSS 0.01332 71st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:echatserver:easy_chat_server:*:*:*:*:*:*:*:* | 2.0 – 3.1 | Vulnerable | Echatserver |
- cpe:2.3:a:echatserver:easy_chat_server:*:*:*:*:*:*:*:* Versions 2.0 – 3.1 Vulnerable ·Echatserver
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-9543
- 2026-10-03 Alias added: GHSA-mmx4-rrqx-q94x
References
Exploit 1
More Echatserver Easy Chat Server vulnerabilities
- TI-2018-15446 EChat Server 3.1 Buffer Overflow via chat.ghp username Parameter CVSS 4.0CRITICAL 9.3
- TI-2019-15666 Easy Chat Server 3.1 Denial of Service via message Parameter CVSS 4.0HIGH 8.7
- TI-2017-06947 There is a remote stack-based buffer overflow (SEH) in register.ghp in EFS Software Easy… CVSS 3.1CRITICAL 9.8
- TI-2022-22094 Efs Software Easy Chat Server Version 3.1 was discovered to contain a DLL hijacking… CVSS 3.1HIGH 7.8
- TI-2017-06958 register.ghp in EFS Software Easy Chat Server versions 2.0 to 3.1 allows remote attackers… CVSS 3.1HIGH 7.5
- TI-2019-14728 An issue was discovered in EFS Easy Chat Server 3.1. CVSS 3.1HIGH 7.5
Sources
- CVE-2017-9543 · CVE Program
- CVE-2017-9543 · NVD
- FIRST EPSS
- GHSA-mmx4-rrqx-q94x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences