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TI-2021-16774 Aliases CVE-2021-39496GHSA-qgx9-8p23-fhf6

Eyoucms 1.5.4 lacks sanitization of input data, allowing an attacker to inject malicious…

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Eyoucms 1.5.4 lacks sanitization of input data, allowing an attacker to inject malicious code into `filename` param to trigger Reflected XSS.

Why it matters now

EPSS 0.00629 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by 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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:eyoucms:eyoucms:1.5.4:*:*:*:*:*:*:*1.5.4VulnerableEyoucms
  • cpe:2.3:a:eyoucms:eyoucms:1.5.4:*:*:*:*:*:*:* Versions 1.5.4 Vulnerable ·Eyoucms

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-39496
  2. 2026-10-03 Alias added: GHSA-qgx9-8p23-fhf6
  3. 2026-10-29 EPSS moved to the 50th–90th percentile

References

Exploit 1

Advisory 1

  • TI-2025-40489 XML external entity (XXE) injection in eyoucms v1.7.1 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.1
  • TI-2022-21806 EyouCMS V1.5.9-UTF8-SP1 was discovered to contain a Cross-Site Request Forgery (CSRF) via… CVSS 3.1HIGH 8.8
  • TI-2022-21150 EyouCMS V1.5.9-UTF8-SP1 was discovered to contain a Cross-Site Request Forgery (CSRF) via… CVSS 3.1HIGH 8.8
  • TI-2024-03201 EyouCMS Backend deserialization CVSS 3.1HIGH 8.8
  • TI-2022-19923 EyouCMS V1.5.9 was discovered to contain multiple Cross-Site Request Forgery (CSRF)… CVSS 3.1HIGH 8.8
  • TI-2023-19203 eyoucms v1.6.3 was discovered to contain an information disclosure vulnerability via the… CVSS 3.1MEDIUM 5.3
See all 74 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences