CVE-2020-27409 Cross-site scripting in n/a

Medium 6.1 Published 4 Dec 2020 Updated 4 Aug 2024

Cross-site scripting in OpenSIS Community Edition allows attackers to inject malicious scripts via the modname parameter, potentially compromising user sessions.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2020-27409?

CVE-2020-27409 is a medium-severity cross-site scripting vulnerability in Os4ed Opensis, published on 4 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

OpenSIS Community Edition before 7.5 is affected by a cross-site scripting (XSS) vulnerability in SideForStudent.php via the modname parameter.

Weakness: CWE-79

Which versions are affected by CVE-2020-27409?

It affects 1 product.

Products include Os4ed Opensis.

How do I fix CVE-2020-27409?

No fix has been published for CVE-2020-27409 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2020-27409 being exploited?

There is no known exploitation of CVE-2020-27409 in the wild and no public exploit code.

All Os4ed Opensis vulnerabilities

Sources

Also known as GHSA-cg7r-5xgw-w475.