CVE-2020-20696 Cross-site Scripting in GilaCMS

Medium 5.4 Published Updated

Attackers can execute arbitrary scripts via the Tags field in GilaCMS admin panel, potentially compromising user sessions.

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

What is CVE-2020-20696?

CVE-2020-20696 is a medium-severity cross-site scripting vulnerability in n/a, published on 27 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A cross-site scripting (XSS) vulnerability in /admin/content/post of GilaCMS v1.11.4 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the Tags field.

Weakness: CWE-79

Which versions are affected by CVE-2020-20696?

2 open source packages ship an affected version, including gilacms/gila. It affects 1 product.

PackageAffectedFixed in
gilacms/gila PackagistAll versions to 1.11.4None
gilacms/gila PackagistAll versions to 1.11.4None

Products include Gilacms Gila Cms.

How do I fix CVE-2020-20696?

No fix has been published for CVE-2020-20696 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-2020-20696 being exploited?

There is no known exploitation of CVE-2020-20696 in the wild and no public exploit code.

Sources

Also known as GHSA-h7mq-27r7-w972.

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