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TI-2021-17394 Aliases CVE-2021-40310GHSA-3xrw-4r8r-42q3

OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS)…

Priority LOW 26CWE-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

OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability in the TakeAttendance.php via the cp_id_miss_attn parameter.

Why it matters now

EPSS 0.00839 58th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged 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:os4ed:opensis:8.0:*:*:*:community:*:*:*8.0VulnerableOS4ED
  • cpe:2.3:a:os4ed:opensis:8.0:*:*:*:community:*:*:* Versions 8.0 Vulnerable ·OS4ED

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-40310
  2. 2026-10-03 Alias added: GHSA-3xrw-4r8r-42q3

References

Exploit 2

Advisory 1

  • TI-2024-34282 SQL injection vulnerability exists in OS4ED openSIS-Classic Version 9.1, specifically in… CVSS 3.1CRITICAL 9.8
  • TI-2020-10493 openSIS through 7.4 allows SQL Injection. CVSS 3.1CRITICAL 9.8
  • TI-2025-16780 OS4ED openSIS v7.0 through v9.1 contains a SQL injection vulnerability via the stu_id… CVSS 3.1HIGH 8.8
  • TI-2025-16779 An issue in OS4ED openSIS v8.0 through v9.1 allows attackers to execute a directory… CVSS 3.1HIGH 8.8
  • TI-2024-31069 OS4ED openSIS-Classic v9.1 was discovered to contain a SQL injection vulnerability via a crafted payload. CVSS 3.1HIGH 8.8
  • TI-2024-23488 SQL injection vulnerabilities were discovered in Ajax.php, ForWindow.php, ForExport.php… CVSS 3.1HIGH 8.8
See all 80 →

Sources

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