CVE-2021-27340

medium

Description

OpenSIS Community Edition version <= 7.6 is affected by a reflected XSS vulnerability in EmailCheck.php via the "opt" parameter.

References

Advisories

https://github.com/OS4ED/openSIS-Classic/releases

https://github.com/OS4ED/openSIS-Classic/issues/158

https://github.com/OS4ED/openSIS-Classic/commit/f78407d5291c686c3f416073dcb9143f3a3d5489#diff-24b751f2072f058259d033016938101f9fa29884ebcc09ce7eb88def3421e5ba

Details

Source: Mitre, NVD

Published: 2021-09-16

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00375