PT-2025-26748 · Unknown · Os4Ed Open Source Information System Community

Published 2025-06-24 · Updated 2025-06-27 · CVE-2021-41691

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: OS4Ed Open Source Information System Community version 8.0

Description: A SQL injection issue exists via the student id and TRANSFER{SCHOOL} parameters in a POST request sent to "/TransferredOutModal.php" API endpoint.

Recommendations: For OS4Ed Open Source Information System Community version 8.0, consider restricting access to the "/TransferredOutModal.php" API endpoint until a patch is available. As a temporary workaround, avoid using the student id and TRANSFER{SCHOOL} parameters in the affected API endpoint.

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

BDU:2026-01014

CVE-2021-41691

Affected Products

Os4Ed Open Source Information System Community

References · 9

• https://bdu.fstec.ru/vul/2026-01014 · Security Note
• https://osv.dev/vulnerability/CVE-2021-41691 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-41691 · Security Note
• https://twitter.com/SecAideInfo/status/1938542016260149429 · Twitter Post
• https://opensis.com · Note
• https://twitter.com/CVEnew/status/1937539872576721377 · Twitter Post
• https://t.me/cvetracker/26952 · Telegram Post
• https://resources.s4e.io/blog/opensis-student-information-system-0-day-vulnerability-cve-2021-41691 · Note
• https://github.com/OS4ED/openSIS-Classic · Note