CVE-2018-15703 Cross-site scripting in Advantech WebAccess

Medium 6.1 Published Updated

Remote attackers can execute arbitrary scripts in victims' browsers via reflected XSS in Advantech WebAccess, potentially leading to session hijacking or malicious actions.

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
None listed

What is CVE-2018-15703?

CVE-2018-15703 is a medium-severity cross-site scripting vulnerability in Advantech Webaccess, published on 22 Oct 2018. 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

Advantech WebAccess 8.3.2 and below is vulnerable to multiple reflected cross site scripting vulnerabilities. A remote unauthenticated attacker could potentially exploit this vulnerability by tricking a victim to supply malicious HTML or JavaScript code to WebAccess, which is then reflected back to the victim and executed by the web browser.

Weakness: CWE-79

Which versions are affected by CVE-2018-15703?

It affects 1 product.

Products include Advantech Webaccess.

How do I fix CVE-2018-15703?

No fix has been published for CVE-2018-15703 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-2018-15703 being exploited?

There is no known exploitation of CVE-2018-15703 in the wild and no public exploit code.

All Advantech Webaccess vulnerabilities

Sources

Also known as GHSA-9qvr-7cx5-jpxc.

Is CVE-2018-15703 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free