GHSA-fxwm-rx68-p5vx XSS in richtext custom tag attributes in ezsystems/ezplatform-richtext
Attackers with editor access can inject scripts via custom tag attributes, potentially compromising other editors' 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
- Available
What is GHSA-fxwm-rx68-p5vx?
GHSA-fxwm-rx68-p5vx is a cross-site scripting vulnerability in ezsystems/ezplatform-richtext, published on 1 Dec 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
Which versions are affected by GHSA-fxwm-rx68-p5vx?
2 open source packages ship an affected version, including ezsystems/ezplatform-richtext.
| Package | Affected | Fixed in |
|---|---|---|
ezsystems/ezplatform-richtext Packagist | From 2.3.0 | 2.3.7.1 |
ezsystems/ezplatform-richtext Packagist | From 2.3.0 | 2.3.7.1 |
How do I fix GHSA-fxwm-rx68-p5vx?
Upgrade ezsystems/ezplatform-richtext to 2.3.7.1 or later.
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 GHSA-fxwm-rx68-p5vx being exploited?
There is no known exploitation of GHSA-fxwm-rx68-p5vx in the wild and no public exploit code.