XSS in Fusionpbx
CVE-2020-21053
Cross Site Scriptiong (XSS) vulnerability exists in FusionPBX 4.5.7 allows remote malicious users to inject arbitrary web script or HTML via an unsanitized "query_string" variable in app\devices\device_imports.php.
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: 0.007 (50.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Fusionpbx — versions 4.5.7
Weakness classification (CWE)
References
- resp3ctblog.wordpress.com/2019/10/28/fusionpbx-xss-22/ (Third Party Advisory)
- github.com/fusionpbx/fusionpbx/commit/2ce613f1e9fe8ffab7a4cb9d1384444622285335 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-21053?
- CVE-2020-21053 is a medium-severity vulnerability in Fusionpbx, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-05-20.
- How severe is CVE-2020-21053?
- Medium severity. CVSS v3 base score is 6.1 out of 10.