CVE-2021-27340

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

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

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/OS4ED/openSIS-Classic/commit/f78407d5291c686c3f416073dcb9143f3a3d5489#diff-24b751f2072f058259d033016938101f9fa29884ebcc09ce7eb88def3421e5baPatch, Third Party Advisory
https://github.com/OS4ED/openSIS-Classic/issues/158Issue Tracking, Third Party Advisory
https://github.com/OS4ED/openSIS-Classic/releasesRelease Notes, Third Party Advisory
https://github.com/OS4ED/openSIS-Classic/commit/f78407d5291c686c3f416073dcb9143f3a3d5489#diff-24b751f2072f058259d033016938101f9fa29884ebcc09ce7eb88def3421e5baPatch, Third Party Advisory
https://github.com/OS4ED/openSIS-Classic/issues/158Issue Tracking, Third Party Advisory
https://github.com/OS4ED/openSIS-Classic/releasesRelease Notes, Third Party Advisory

Timeline

Published: Sep 16, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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