Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Horde | Groupware | 5.2.22 |
| Horde | Horde Form | < 2.0.20 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- https://lists.debian.org/debian-lts-announce/2020/03/msg00036.htmlMailing ListThird Party Advisory
- https://lists.horde.org/archives/announce/2020/001288.htmlMailing ListVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-275/Third Party AdvisoryVDB Entry
- https://lists.debian.org/debian-lts-announce/2020/03/msg00036.htmlMailing ListThird Party Advisory
- https://lists.horde.org/archives/announce/2020/001288.htmlMailing ListVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-275/Third Party AdvisoryVDB Entry
FAQ
What is CVE-2020-8866?
CVE-2020-8866 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2020-8866?
CVE-2020-8866 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-8866?
Check the references section above for vendor advisories and patch information. Affected products include: Horde Groupware, Horde Horde Form, Debian Debian Linux.