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PatchSiren cyber security CVE debrief

CVE-2026-36227 Easy Chat Server CVE debrief

CVE-2026-36227 is a Directory Traversal vulnerability in Easy Chat Server 3.1. A remote attacker can exploit this vulnerability to obtain sensitive information and execute arbitrary code via the UserName parameter. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM. Organizations should prioritize patching this vulnerability to prevent potential attacks. The CVE record and NVD entry provide the basis for this debrief.

Vendor
Easy Chat Server
Product
Easy Chat Server 3.1
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-22
Original CVE updated
2026-07-23
Advisory published
2026-05-22
Advisory updated
2026-07-23

Who should care

Organizations using Easy Chat Server 3.1, particularly those with exposed deployments, should prioritize patching this vulnerability to prevent potential attacks. Affected operators, platform administrators, vulnerability management teams, and security teams should review the CVE record and NVD entry for guidance.

Technical summary

The vulnerability is caused by a lack of proper input validation in the UserName parameter, allowing an attacker to traverse the directory and access sensitive information. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N. This vulnerability can be exploited by a remote attacker to obtain sensitive information and execute arbitrary code.

Defensive priority

Medium-High

Recommended defensive actions

  • Patch Easy Chat Server 3.1 to the latest version
  • Restrict access to the UserName parameter
  • Monitor for suspicious activity

Evidence notes

The CVE record was published on 2026-05-22T17:16:46.923Z and last modified on 2026-07-05T02:17:47.233Z. The NVD entry is currently Deferred. Evidence is limited to CVE and NVD details, which may not cover all affected or vulnerable configurations. Defenders should verify potential exposure and review vendor guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-36227 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-36227

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-36227 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-36227

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.