CVE-2020-20523 Gila CMS Cross-site Scripting Vulnerability
Remote attackers can execute arbitrary code via XSS in the adm_user parameter during Gila CMS installation.
- 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
- Available
What is CVE-2020-20523?
CVE-2020-20523 is a medium-severity cross-site scripting vulnerability in n/a, published on 11 Aug 2023. 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
Cross Site Scripting (XSS) vulnerability in adm_user parameter in Gila CMS version 1.11.3, allows remote attackers to execute arbitrary code during the Gila CMS installation.
Weakness: CWE-79
Which versions are affected by CVE-2020-20523?
2 open source packages ship an affected version, including gilacms/gila. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gilacms/gila Packagist | All versions | 1.11.4 |
gilacms/gila Packagist | All versions | 1.11.4 |
Products include Gilacms Gila Cms.
How do I fix CVE-2020-20523?
Upgrade gilacms/gila to 1.11.4 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-2020-20523 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-20523 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-rvjp-j5j4-c9j5.