CVE-2016-2555
CriticalPublic exploitSQL injection vulnerability in include/lib/mysql_connect.inc.php in ATutor 2.2.1 allows remote attackers to execute arbitrary SQL commands via the searchFriends function to friends.inc.php.
Published Apr 13, 2017 · Updated Jul 8, 2026
Key Facts
Patch immediately- CVE-2016-2555 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Atutor.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 80% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
80%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2016-2555 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
SQL injection vulnerability in include/lib/mysql_connect.inc.php in ATutor 2.2.1 allows remote attackers to execute arbitrary SQL commands via the searchFriends function to friends.inc.php.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| AtutorAtutor | 2.2.1 | n/a |
Timeline
Publicly disclosed
Apr 13, 2017
Last updated
Jul 8, 2026
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- advisoryhttp://www.rapid7.com/db/modules/exploit/multi/http/atutor_sqli
- patchhttps://github.com/atutor/ATutor/commit/629b2c992447f7670a2fecc484abfad8c4c2d298
- patchhttps://github.com/atutor/ATutor/commit/945a9dca01def8536516088da30fe6a4b7e9fa85
- exploitMSF atutor_filemanager_traversal.rb
- exploitMSF atutor_sqli.rb
FAQ
Common Questions.
SQL injection vulnerability in include/lib/mysql_connect.inc.php in ATutor 2.2.1 allows remote attackers to execute arbitrary SQL commands via the searchFriends function to friends.inc.php.
Affected: Atutor versions 2.2.1. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
Is CVE-2016-2555 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo