CVE-2020-8866
php-horde-form - security update
6.5
MEDIUM
CVSS 3.1
EPSS 9.6%
Description
This vulnerability allows remote attackers to create arbitrary files on affected installations of Horde Groupware Webmail Edition 5.2.22. Authentication is required to exploit this vulnerability. The specific flaw exists within add.php. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the www-data user. Was ZDI-CAN-10125.
How to fix CVE-2020-8866
To remediate CVE-2020-8866, upgrade the affected package to a fixed version below.
- —upgrade to 2.0.20-1 or later
- —upgrade to 2.0.8-2+deb8u2 or later
Is CVE-2020-8866 being exploited?
Moderate — EPSS is 9.6%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 2.0.20-1
- from 0, < 2.0.8-2+deb8u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |