CVE-2020-36523 PlantUML Database Information Macro cross site scripting
Remote attackers can execute arbitrary scripts via the Database Information Macro in PlantUML, 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-2020-36523?
CVE-2020-36523 is a low-severity cross-site scripting vulnerability in unspecified PlantUML, published on 3 Jun 2022. 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 vulnerability was found in PlantUML 6.43. It has been declared as problematic. Affected by this vulnerability is the component Database Information Macro. The manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Weakness: CWE-79
Which versions are affected by CVE-2020-36523?
It affects 1 product.
Products include Avono Plantuml.
How do I fix CVE-2020-36523?
No fix has been published for CVE-2020-36523 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-2020-36523 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36523 exists.
Sources
Also known as GHSA-j26c-vggw-xm6q.