CVE-2020-8518

Name: CVE-2020-8518
Creator: NVD / NIST
Published: 2020-02-17T15:15:11.853+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 71.14%

Last modified Jun 17, 2026

CVE-2020-8518 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV data, leading to remote code execution.. EPSS estimates a 71.14% chance of exploitation in the next 30 days.

Description

Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV data, leading to remote code execution.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

71.14%

99.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Horde	Groupware	5.2.22
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31
Debian	Debian Linux	8.0

References

http://packetstormsecurity.com/files/156872/Horde-5.2.22-CSV-Import-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2020/04/msg00008.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2PRPIFQDGYPQ3F2TF2ETPIL7IYNSVVZQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKTNYDBDVJNMVC7QPXQI7CMPLX3USZ2T/
https://lists.horde.org/archives/announce/2020/001285.htmlMailing List, Vendor Advisory
http://packetstormsecurity.com/files/156872/Horde-5.2.22-CSV-Import-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2020/04/msg00008.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2PRPIFQDGYPQ3F2TF2ETPIL7IYNSVVZQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKTNYDBDVJNMVC7QPXQI7CMPLX3USZ2T/
https://lists.horde.org/archives/announce/2020/001285.htmlMailing List, Vendor Advisory

Timeline

Published: Feb 17, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8518?

Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV data, leading to remote code execution.

How severe is CVE-2020-8518?

CVE-2020-8518 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 71.14% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8518?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8518?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST