CVE-2021-40309

8.8 HIGH

A SQL injection vulnerability exists in the Take Attendance functionality of OS4Ed's OpenSIS 8.0

Published: 2021-09-24 · Last updated: 2026-06-17

Severity and scoring

CVSS: 8.8 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-89

Affected products

Vendor	Product
os4ed	opensis

Description

A SQL injection vulnerability exists in the Take Attendance functionality of OS4Ed's OpenSIS 8.0. allows an attacker to inject their own SQL query. The cp_id_miss_attn parameter from TakeAttendance.php is vulnerable to SQL injection. An attacker can make an authenticated HTTP request as a user with access to "Take Attendance" functionality to trigger this vulnerability.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-40309
[Exploit reference]https://github.com/MiSERYYYYY/Vulnerability-Reports-and-Disclosures/blob/main/OpenSIS-Community-8.0.md
[Other]https://github.com/OS4ED/openSIS-Classic
[Exploit reference]https://www.exploit-db.com/exploits/50249
[Exploit reference]https://github.com/MiSERYYYYY/Vulnerability-Reports-and-Disclosures/blob/main/OpenSIS-Community-8.0.md
[Other]https://github.com/OS4ED/openSIS-Classic
[Exploit reference]https://www.exploit-db.com/exploits/50249

Related CVEs

Same vendor

CVE-2021-40618 — An SQL Injection vulnerability exists in openSIS Classic 8.0 via the 1) ADDR_CONT_USRN, 2) ADDR_CONT_PSWD, 3) SECN_CONT_USRN or 4) SECN_C... (9.8 CRITICAL)
CVE-2021-40617 — An SQL Injection vulnerability exists in openSIS Community Edition version 8.0 via ForgotPassUserName.php (9.8 CRITICAL)
CVE-2021-40543 — Opensis-Classic Version 8.0 is affected by a SQL injection vulnerability due to a lack of sanitization of input data at two parameters $_... (9.8 CRITICAL)
CVE-2021-40542 — Opensis-Classic Version 8.0 is affected by cross-site scripting (XSS) (6.1 MEDIUM)
CVE-2021-40651 — OS4Ed OpenSIS Community 8.0 is vulnerable to a local file inclusion vulnerability in Modules.php (modname parameter), which can disclose ... (6.5 MEDIUM)

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