Medium severity6.5NVD Advisory· Published Mar 23, 2020· Updated Jun 17, 2026
CVE-2020-8866
CVE-2020-8866
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.
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Affected products
6- cpe:2.3:a:horde:groupware:5.2.22:*:*:*:webmail:*:*:*
- Range: =5.2.22
=5.2.22+ 1 more
- (no CPE)range: =5.2.22
- (no CPE)range: 5.2.22
Patches
Vulnerability mechanics
References
3- lists.debian.org/debian-lts-announce/2020/03/msg00036.htmlnvdMailing ListThird Party Advisory
- lists.horde.org/archives/announce/2020/001288.htmlnvdMailing ListVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-20-275/nvdThird Party AdvisoryVDB Entry
News mentions
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