CVE-2021-40637

6.1 mediumEPSS 0.8%

Medium (6.1) in os4ed opensis. EPSS 0.8% chance of exploitation in the next 30 days.

OS4ED openSIS 8.0 is affected by cross-site scripting (XSS) in EmailCheckOthers.php. An attacker can inject JavaScript code to get the user's cookie and take over the working session of user.

Severity

CVSS 3.1

6.1 medium

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2022-03-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

os4ed:opensis

References

https://github.com/OS4ED/openSIS-Classic/issues/199
https://github.com/OS4ED/openSIS-Classic/issues/199

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