What’s Vulnerable › Vulnerabilities

CVE-2023-38881

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-20 · updated 2026-06-17
• Weakness: CWE-79

Description

A reflected cross-site scripting (XSS) vulnerability in the Community Edition version 9.0 of OS4ED's openSIS Classic allows remote attackers to execute arbitrary JavaScript in the web browser of a user, by including a malicious payload into any of the 'calendar_id', 'school_date', 'month' or 'year' parameters in 'CalendarModal.php'.

Affected products

• OS4ED openSIS-Classic: 9.0

References

• https://github.com/OS4ED/openSIS-Classic
• https://github.com/dub-flow/vulnerability-research/tree/main/CVE-2023-38881
• https://www.os4ed.com/
• https://github.com/OS4ED/openSIS-Classic
• https://github.com/dub-flow/vulnerability-research/tree/main/CVE-2023-38881
• https://www.os4ed.com/

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