CVE-2026-92993: Command Injection (CVSS 6.3)

Description

A vulnerability was detected in Dromara mayfly-go up to 1.11.5. The impacted element is the function RunMachineScript of the file server/internal/machine/api/machine_script.go of the component Machine Script Feature. The manipulation of the argument params results in os command injection. The attack can be executed remotely. The exploit is now public and may be used. Exploitation needs no admin account. Any account holding machine:script:run plus tag access reaches arbitrary command execution on machines whose templates contain {{.param}} placeholders; the SSH exec layer (Cli.Run) also applies no input filtering to any caller. The vendor was contacted early about this disclosure but did not respond in any way.

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CVSS v3.1 Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS — Exploit Prediction

0.0146

Probability of exploitation

0.73%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-77 CWE-77

CWE-78 OS Command Injection

References

Other References

https://gist.github.com/xufengnian/b95662ba0d8881cfc5ba0bb99cbfc086 https://github.com/dromara/mayfly-go/ https://github.com/dromara/mayfly-go/pull/129 https://vuldb.com/cve/CVE-2026-92993 https://vuldb.com/submit/942254 https://vuldb.com/vuln/406447 https://vuldb.com/vuln/406447/cti

Frequently Asked Questions

What is CVE-2026-92993? +

A vulnerability was detected in Dromara mayfly-go up to 1.11.5. The impacted element is the function RunMachineScript of the file server/internal/machine/api/machine_script.go of the component Machine Script Feature. The manipulation of the argument params results in os command injection. The attack can be executed remotely. The exploit is now public and may be used. Exploitation needs no admin account. Any account holding machine:script:run plus tag access reaches arbitrary command execution on machines whose templates contain {{.param}} placeholders; the SSH exec layer (Cli.Run) also applies no input filtering to any caller. The vendor was contacted early about this disclosure but did not respond in any way. It has a CVSS v3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2026-92993? +

CVE-2026-92993 has a CVSS v3.1 score of 6.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0146, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-92993? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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