CVE-2020-28351 Cross-site scripting in n/a
An unauthenticated attacker can execute arbitrary scripts in the victim's browser via reflected XSS in the Mitel ShoreTel conferencing component.
- 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-2020-28351?
CVE-2020-28351 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Nov 2020. 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
The conferencing component on Mitel ShoreTel 19.46.1802.0 devices could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack (via the PATH_INFO to index.php) due to insufficient validation for the time_zone object in the HOME_MEETING& page.
Weakness: CWE-79
Which versions are affected by CVE-2020-28351?
It affects 1 product.
Products include Mitel Shoretel Firmware.
How do I fix CVE-2020-28351?
No fix has been published for CVE-2020-28351 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-2020-28351 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-28351 exists.
Public exploit code: 1 Exploit-DB entry, 1 Nuclei template and 1 proofs of concept on GitHub.
Sources
Also known as GHSA-94pc-7pmm-6j95.