PT-2022-11283 · Os4Ed · Os4Ed Opensis

Published 2022-03-03 · Updated 2022-03-09 · CVE-2021-40637

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions OS4ED openSIS version 8.0

Description The issue concerns cross-site scripting (XSS) in the EmailCheckOthers.php file. An attacker can inject JavaScript code to obtain a user's cookie and take over the user's working session.

Recommendations For OS4ED openSIS version 8.0, consider disabling access to the EmailCheckOthers.php file until a patch is available to prevent exploitation of the XSS issue.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-40637

Affected Products

Os4Ed Opensis

References · 4

• 🔥 https://github.com/OS4ED/openSIS-Classic/issues/199 · Exploit
• https://osv.dev/vulnerability/CVE-2021-40637 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40637 · Security Note
• https://t.me/cibsecurity/38357 · Telegram Post