CVE-2026-1688 is a high severity (CVSS 7.3) SQL injection in itsourcecode Directory Management System 1.0. The Username argument of /admin/index.php is not handled safely, and the record says a public exploit exists. We found no fixed version, so remove the app from the internet or replace it.
What's affected
itsourcecode Directory Management System 1.0. The record names the file /admin/index.php and the Username argument, and says the attack can be started remotely. The record also says the exploit has been disclosed publicly and may be used.
The pages we reached do not list a patched version or a vendor advisory, so we cannot name a fixed release. Check the vendor site and the VulDB entry for any update.
How to check if you're exposed
First find out if you run this application at all. Search your web roots and repositories for the product name and the admin path.
grep -ril "Directory Management System" /var/www 2>/dev/null
Then check whether the admin page is reachable from outside your network. Web server access logs for /admin/index.php show who has been calling it, and a spike of failed or odd login attempts is worth escalating.
A dynamic scan of the login page can also show whether the input is handled safely, if you have permission to test it.
What to do now
- Decide whether this application is needed. Source code projects like this are often samples, not production software.
- If you keep it, take it off the internet and limit the admin path to trusted addresses or a VPN.
- Review the code that builds the login query and move to parameterized statements.
- Review access logs and the database for signs of misuse, and rotate admin credentials.
- Watch the vendor and VulDB entries for a fix.
Why it matters
The weaknesses are CWE-74 (Injection), CWE-89 (SQL Injection). The login code builds a database query from the submitted username, so input that includes SQL syntax can change the query. At a login page, that can mean sign-in without a password or reading records.
The fix is well known: pass user input as bound parameters and never join it into query text. For small projects with no active maintainer, the safer course is often to stop exposing them. CISA does not list this CVE as known exploited, though the record says an exploit was published.
Try it yourself
This demo shows how a scan against a web login page finds injection weaknesses.
Click through it at your own pace, or open it full screen.
Quick check
Is there a patch?
We could not confirm one. The record and the pages we reached give no fixed version, so check the vendor and the VulDB entry.
Sources
Last reviewed: 19 October 2026.
