Arbitrary File Upload Vulnerability in Horde Groupware Webmail Edition
CVE-2020-8866

4.3MEDIUM

Key Information:

Vendor

Horde

Status
Groupware Webmail Edition
Vendor
CVE Published:
23 March 2020

What is CVE-2020-8866?

This vulnerability enables remote attackers to upload arbitrary files on installations of Horde Groupware Webmail Edition 5.2.22. The flaw resides in the add.php module, due to inadequate validation of user-supplied data. An attacker must authenticate to exploit this issue, which may facilitate the execution of malicious code in the context of the www-data user when leveraged with other vulnerabilities.

Affected Version(s)

Groupware Webmail Edition 5.2.22

References

https://www.zerodayinitiative.com/advisories/ZDI-20-275/
x_refsource_MISC
https://lists.horde.org/archives/announce/2020/001288.html
x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020/03/msg0...
mailing-listx_refsource_MLIST

EPSS Score

9% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

CVSS V3.0

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Andrea Cardaci
.