CVE-2020-5273 Stored XSS with custom URLs in PrestaShop module ps_linklist
Attackers can inject malicious scripts via custom URLs in the ps_linklist module, 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
- Available
What is CVE-2020-5273?
CVE-2020-5273 is a medium-severity cross-site scripting vulnerability in PrestaShop ps_linklist, published on 16 Apr 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In PrestaShop module ps_linklist versions before 3.1.0, there is a stored XSS when using custom URLs. The problem is fixed in version 3.1.0
Weakness: CWE-79
Which versions are affected by CVE-2020-5273?
2 open source packages ship an affected version, including prestashop/ps_linklist. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
prestashop/ps_linklist Packagist | All versions | 3.1.0 |
prestashop/ps_linklist Packagist | All versions | 3.1.0 |
Products include Prestashop Prestashop Linklist.
How do I fix CVE-2020-5273?
Upgrade prestashop/ps_linklist to 3.1.0 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 CVE-2020-5273 being exploited?
There is no known exploitation of CVE-2020-5273 in the wild and no public exploit code.
Sources
Also known as GHSA-cx2r-mf6x-55rx.