CVE-2021-3159 Cross-site scripting in n/a
Attackers can execute arbitrary scripts via crafted files in the attachment uploader, 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-2021-3159?
CVE-2021-3159 is a medium-severity cross-site scripting vulnerability in n/a, published on 23 Jul 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
A stored cross site scripting (XSS) vulnerability in the /sys/attachment/uploaderServlet component of Landray EKP V12.0.9.R.20160325 allows attackers to execute arbitrary web scripts or HTML via a crafted SVG, SHTML, or MHT file.
Weakness: CWE-79
Which versions are affected by CVE-2021-3159?
It affects 1 product.
Products include Landray Landray Ekp.
How do I fix CVE-2021-3159?
No fix has been published for CVE-2021-3159 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-2021-3159 being exploited?
There is no known exploitation of CVE-2021-3159 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-3m5r-vf35-8v65.