OpenSIS Community Edition through 7.6 is affected by incorrect access controls for the file ResetUserInfo.php that allow an unauthenticated…

published 2020-12-04 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19919

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.7%; EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits: 0; none known

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.

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

insinuator.net https://insinuator.net/2020/10/opensis-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-287 Improper Authentication
CWE-640 Weak Password Recovery Mechanism for Forgotten Password

References

insinuator.net /2020/10/opensis-vulnerabilities/
exploit, third-party-advisory
github.com /OS4ED/openSIS-Responsive-Design/releases
release-notes, third-party-advisory

Sources

CVE List CVE-2020-27408
NVD CVE-2020-27408

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary