CVE-2020-5809
published 2020-12-30CVE-2020-5809: A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing…
PriorityP424medium5.4CVSS 3.1
AVNACLPRLUIRSCCLILAN
EPSS
0.68%
47.6th percentile
A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| umbraco | umbraco_cms | <= 8.9.1 | — |
CVSS provenance
nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
nvdv2.03.5LOWAV:N/AC:M/Au:S/C:N/I:P/A:N
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GHSA
Umbraco CMS vulnerable to stored XSS
ghsa·2022-05-24
CVE-2020-5809 [MEDIUM] CWE-79 Umbraco CMS vulnerable to stored XSS
Umbraco CMS vulnerable to stored XSS
A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS.
OSV
Umbraco CMS vulnerable to stored XSS
osv·2022-05-24
CVE-2020-5809 [MEDIUM] Umbraco CMS vulnerable to stored XSS
Umbraco CMS vulnerable to stored XSS
A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS.
No detection rules found.
No public exploits indexed.
2020-12-30
Published