TI-2020-16659 Aliases CVE-2020-27408 GHSA-rg77-jjpv-33p3

OpenSIS Community Edition through 7.6 is affected by incorrect access controls for the…

LOW 36CWE-287Published 2020-12-04 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

OpenSIS Community Edition through 7.6 is affected by incorrect access controls for the file ResetUserInfo.php that allow an unauthenticated attacker to change the password of arbitrary users.

Why it matters now

EPSS 0.01674 76th 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

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:os4ed:opensis:::::community:::*	up to 7.6	Vulnerable	OS4ED

cpe:2.3:a:os4ed:opensis:*:*:*:*:community:*:*:* Versions up to 7.6 Vulnerable ·OS4ED

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-27408
2026-10-03 Alias added: GHSA-rg77-jjpv-33p3

References

Exploit 1

https://insinuator.net/2020/10/opensis-vulnerabilities/

Advisory 1

https://github.com/OS4ED/openSIS-Responsive-Design/releases

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

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Sources

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