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CRITICAL severity

OS Command Injection in GenieACSGHSA-2877-693q-pj33

CRITICALFix: genieacs/genieacs@7f295be

GHSA-2877-693q-pj33 is a critical-severity (CVSS 9.8) OS Command Injection vulnerability in genieacs. EPSS puts its 30-day exploitation probability at 21.9% (98th percentile). A fix is available for genieacs — see the affected versions and patch details below.

Also known asCVE-2021-46704
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
21.9%probability of exploitation in next 30 days
Moderate Risk0.00%
Lower risk than most CVEs98th percentile — riskier than 98% of all scored CVEsHighest risk
2.39%34.9%67.5%100.0%86.9%21.9%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

0other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
genieacsnpm
2Kdownloads / week

Description

In GenieACS 1.2.x before 1.2.8, the UI interface API is vulnerable to unauthenticated OS command injection via the ping host argument (lib/ui/api.ts and lib/ping.ts). The vulnerability arises from insufficient input validation combined with a missing authorization check.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmgenieacsall versions1.2.8npm install genieacs@1.2.8

Affected Products

1 product · 1 configurations
Application
genieacsgenieacs
≥ 1.2.0 && < 1.2.8
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for genieacs, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update genieacs to 1.2.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-2877-693q-pj33 is resolved across your whole dependency graph.

  3. Workarounds

    Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

How to detect GHSA-2877-693q-pj33

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id ghsa-2877-693q-pj33 -u https://target
Template
GenieACS => 1.2.8 - OS Command Injection
Severity
critical
Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary commands on the target system.
Remediation
Upgrade to a patched version of GenieACS or apply the necessary security patches to mitigate the vulnerability.

Template by ProjectDiscovery nuclei-templates (DhiyaneshDK), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

In GenieACS 1.2.x before 1.2.8, the UI interface API is vulnerable to unauthenticated OS command injection via the ping host argument (lib/ui/api.ts and lib/ping.ts). The vulnerability arises from insufficient input validation combined with a missing authorization check.
O3 Security · Impact-Aware SCA

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OS Command Injection in GenieACS (Critical 9.8)