XSS in Mitel Shoretel
CVE-2020-28351
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.160 (96.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.160 · newest: 0.160 · change: 0.000
Affected products
- Mitel Shoretel
- Mitel Shoretel Firmware — versions 19.46.1802.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.mitel.com/articles/what-happened-shoretel-products (Vendor Advisory)
- github.com/dievus/cve-2020-28351 (Third Party Advisory)
- packetstormsecurity.com/files/159987/ShoreTel-Conferencing-19.46.1802.0-Cross-S… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-28351?
- CVE-2020-28351 is a medium-severity vulnerability in Mitel Shoretel, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-11-09.
- How severe is CVE-2020-28351?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2020-28351 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.