CVE-2020-8518 Code injection in n/a

What is CVE-2020-8518?

CVE-2020-8518 is a critical code injection vulnerability in Debian Debian Linux, published on 17 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-94

Which versions are affected by CVE-2020-8518?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Horde Groupware.

How do I fix CVE-2020-8518?

Apply the vendor's patch.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2020-8518 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-8518 exists.

Public exploit code: 1 Metasploit module and 1 Exploit-DB entry.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-8518, DLA-2174-1, GHSA-v54x-qq77-866f, UBUNTU-CVE-2020-8518.