CVE-2021-24126 Envira Gallery Lite < 1.8.3.3 - Authenticated Stored Cross-Site Scripting
Authenticated attackers can inject malicious scripts via image metadata in Envira Gallery Lite, potentially leading to privilege escalation.
- 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-2021-24126?
CVE-2021-24126 is a medium-severity cross-site scripting vulnerability in Unknown Envira Gallery Lite, published on 18 Mar 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
Unvalidated input and lack of output encoding in the Envira Gallery Lite WordPress plugin, versions before 1.8.3.3, did not properly sanitise the images metadata (namely title) before outputting them in the generated gallery, which could lead to privilege escalation.
Weakness: CWE-79
Which versions are affected by CVE-2021-24126?
It affects 1 product.
Products include Enviragallery Envira Gallery.
How do I fix CVE-2021-24126?
No fix has been published for CVE-2021-24126 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-2021-24126 being exploited?
There is no known exploitation of CVE-2021-24126 in the wild and no public exploit code.
Other vulnerabilities in Unknown Envira Gallery Lite
Sources
Also known as GHSA-2564-4rf9-wv93.