CVE-2020-25205: The web console for Mimosa B5, B5c, and C5x firmware through 2.8.0.2 is vulnerable to stored XSS in the set_banner() function of…

PriorityP428medium6.1CVSS 3.1

AVNACLPRNUIRSCCLILAN

EPSS

0.91%

55.3th percentile

The web console for Mimosa B5, B5c, and C5x firmware through 2.8.0.2 is vulnerable to stored XSS in the set_banner() function of /var/www/core/controller/index.php. An unauthenticated attacker may set the contents of the /mnt/jffs2/banner.txt file, stored on the device's filesystem, to contain arbitrary JavaScript. The file contents are then used as part of a welcome/banner message presented to unauthenticated users who visit the login page for the web console. This vulnerability does not occur in the older 1.5.x firmware versions.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
mimosa	b5_firmware	<= 2.8.0.3	—
mimosa	b5c_firmware	<= 2.8.0.3	—
mimosa	c5c_firmware	<= 2.8.0.3	—

CVSS provenance

nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

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