CVE-2020-13383
CVE-2020-13383 is a high-severity vulnerability in Os4ed Opensis with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 70% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 70% (99th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Os4ed Opensis
- Published:
- Last modified:
Description
openSIS through 7.4 allows Directory Traversal.
Frequently asked questions
- What is CVE-2020-13383?
- openSIS through 7.4 allows Directory Traversal.
- How severe is CVE-2020-13383?
- CVE-2020-13383 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2020-13383 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 70% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-13383?
- CVE-2020-13383 affects Os4ed Opensis. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-13383?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-13383 published?
- CVE-2020-13383 was published on 2020-07-01 and last updated on 2026-06-17.
References
- http://packetstormsecurity.com/files/158256/openSIS-7.4-Local-File-Inclusion.html
- http://packetstormsecurity.com/files/158331/openSIS-7.4-Unauthenticated-PHP-Code-Execution.html
- https://github.com/OS4ED/openSIS-Responsive-Design/commit/1127ae0bb7c3a2883febeabc6b71ad8d73510de8
Affected products (1)
- cpe:2.3:a:os4ed:opensis:*:*:*:*:*:*:*:*
More vulnerabilities in Os4ed Opensis
- CVE-2021-41691 — Critical (CVSS 9.8): A SQL injection vulnerability exists in OS4Ed Open Source Information System Community v8.0 via the "student_id" and…
- CVE-2025-22930 — Critical (CVSS 9.8): OS4ED openSIS v7.0 to v9.1 was discovered to contain a SQL injection vulnerability via the groupid parameter at…
- CVE-2025-22929 — Critical (CVSS 9.8): OS4ED openSIS v7.0 to v9.1 was discovered to contain a SQL injection vulnerability via the filter_id parameter at…
- CVE-2025-22926 — Critical (CVSS 9.8): An issue in OS4ED openSIS v8.0 through v9.1 allows attackers to execute a directory traversal by sending a crafted POST…
- CVE-2025-22928 — Critical (CVSS 9.8): OS4ED openSIS v7.0 to v9.1 was discovered to contain a SQL injection vulnerability via the cp_id parameter at…
- CVE-2024-51211 — Critical (CVSS 9.8): SQL injection vulnerability exists in OS4ED openSIS-Classic Version 9.1, specifically in the resetuserinfo.php file.…
All CVEs affecting Os4ed Opensis →
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