CVE-2019-12170
ATutor through 2.2.4 is vulnerable to arbitrary file uploads via the mods/_core/backups/upload.php (aka backup) component.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
ATutor through 2.2.4 is vulnerable to arbitrary file uploads via the mods/_core/backups/upload.php (aka backup) component. This may result in remote command execution. An attacker can use the instructor account to fully compromise the system using a crafted backup ZIP archive. This will allow for PHP files to be written to the web root, and for code to execute on the remote server.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.59% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- atutor/atutor
- Source
- cve@mitre.org
EPSS moved from 6.8% on 21 September 2026 to 8.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://incidentsecurity.com/atutor-2-2-4-backup-remote-command-execution/Exploit, Third Party Advisory, URL Repurposed
- http://packetstormsecurity.com/files/153869/ATutor-2.2.4-Backup-Remote-Command-Execution.html
- https://github.com/fuzzlove/ATutor-Instructor-Backup-Arbitrary-FileExploit, Third Party Advisory
- http://incidentsecurity.com/atutor-2-2-4-backup-remote-command-execution/Exploit, Third Party Advisory, URL Repurposed
- http://packetstormsecurity.com/files/153869/ATutor-2.2.4-Backup-Remote-Command-Execution.html
- https://github.com/fuzzlove/ATutor-Instructor-Backup-Arbitrary-FileExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.