CVE-2020-7799
An authenticated user, allowed to edit e-mail templates (Home -> Settings -> Email Templates) or themes (Home -> Settings -> Themes), can execute commands on the underlying operating system by abusing freemarker.template.utility.Execute in the Apache…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 19.8%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
An issue was discovered in FusionAuth before 1.11.0. An authenticated user, allowed to edit e-mail templates (Home -> Settings -> Email Templates) or themes (Home -> Settings -> Themes), can execute commands on the underlying operating system by abusing freemarker.template.utility.Execute in the Apache FreeMarker engine that processes custom templates.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 19.81% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-917
- Affected
- fusionauth/fusionauth
- Source
- cve@mitre.org
EPSS 19.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://packetstormsecurity.com/files/156102/FusionAuth-1.10-Remote-Command-Execution.htmlThird Party Advisory, VDB Entry
- https://fusionauth.io/docs/v1/tech/release-notesExploit, Release Notes, Vendor Advisory
- https://lab.mediaservice.net/advisory/2020-03-fusionauth.txtThird Party Advisory
- https://seclists.org/bugtraq/2020/Jan/39Mailing List, Third Party Advisory
- http://packetstormsecurity.com/files/156102/FusionAuth-1.10-Remote-Command-Execution.htmlThird Party Advisory, VDB Entry
- https://fusionauth.io/docs/v1/tech/release-notesExploit, Release Notes, Vendor Advisory
- https://lab.mediaservice.net/advisory/2020-03-fusionauth.txtThird Party Advisory
- https://seclists.org/bugtraq/2020/Jan/39Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.