CVE-2020-8518Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV data, leading to remote code execution.
- 9.8CriticalCVSS base score
- 71.7%Exploitation in 30 daysEPSS · top 0.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 2Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV data, leading to remote code execution.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and an Exploit-DB entry for it.
Show the exploits2
Metasploit modules1 module
- Horde CSV import arbitrary PHP code execution (Metasploit module) (opens in a new tab)
exploit/multi/http/horde_csv_rceRank excellentdisclosed 7 Feb 2020
Exploit-DB1 entry
- Horde Groupware Webmail Edition 5.2.22 - Remote Code Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 48215webapps, phppublished 10 Mar 2020Not verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 14 days later
· 14 days later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 71.7% · top 0.6% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
References5
- FEDORA-2020-0248ad925e (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2020-1e7cc91d55 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://lists.horde.org/archives/announce/2020/001285.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://packetstormsecurity.com/files/156872/Horde-5.2.22-CSV-Import-Code-Execution.html (opens in a new tab)x_refsource_MISCx_transferred
- [debian-lts-announce] 20200415 [SECURITY] [DLA 2174-1] php-horde-data security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-29384 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-8518)Record last updated .