Auth bypass in Os4ed Opensis

CVE-2020-27408

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.

Vulnerability class: Broken Authentication

EPSS: 0.017 (74.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-27408?
CVE-2020-27408 is a high-severity vulnerability in Os4ed Opensis, classified under Improper Authentication. CVSS score: 7.5/10. Published 2020-12-04.
How severe is CVE-2020-27408?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-27408 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.