CVE-2026-27175: MajorDoMo Command Injection in rc/index.php via Race Condition
sergejey · MajorDoMo
Vendor fix available · Affected: sergejey MajorDoMo · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 97% of scored CVEs
DescriptionCVE.org
MajorDoMo (aka Major Domestic Module) is vulnerable to unauthenticated OS command injection via rc/index.php. The $param variable from user input is interpolated into a command string within double quotes without sanitization via escapeshellarg(). The command is inserted into a database queue by safe_exec(), which performs no sanitization. The cycle_execs.php script, which is web-accessible without authentication, retrieves queued commands and passes them directly to exec(). An attacker can exploit a race condition by first triggering cycle_execs.php (which purges the queue and enters a polling loop), then injecting a malicious command via the rc endpoint while the worker is polling. The injected shell metacharacters expand inside double quotes, achieving remote code execution within one second.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- sergejey · MajorDoMo0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- MajorDoMo - OS Command Injection via Race Condition · nuclei template in projectdiscovery/nuclei-templates
- Vendor
- sergejey
- Published
- February 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-27175 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.