Security readout for executives and security teams
Plain-English summary
CVE-2021-47841 affects SnipCommand 0.1.0, a command-snippet tool. It allows stored cross-site scripting through snippet file or title inputs. A victim who opens a malicious snippet may run attacker-supplied JavaScript in the application context. Public proof-of-concept material exists, but the provided sources do not show active exploitation.
Executive priority
Treat as a targeted medium-priority remediation item. It is not KEV-listed and requires user interaction, but public exploit material exists. Prioritize if SnipCommand is used by developers, administrators, or teams handling sensitive systems.
Technical view
The issue is CWE-79 persistent XSS in gurayyarar SnipCommand 0.1.0. The CVSS 3.1 score is 6.1, with network attack vector, low complexity, no privileges, and required user interaction. Sources state malicious JavaScript can be embedded in command snippets through file or title inputs, potentially leading to remote command execution behavior in the affected application context.
Likely exposure
Exposure is limited to environments using SnipCommand 0.1.0, especially where users import, share, or open untrusted command snippets. Systems not running this product and version are not indicated as affected by the provided sources.
Exploitation context
Exploit-DB and a proof-of-concept video are referenced, so exploit details are public. The CVSS vector requires user interaction. CISA KEV status is false in the provided bundle, and no cited source states active exploitation in the wild.
Researcher notes
Evidence is sparse and primarily third-party. The affected product and version are clearly stated as gurayyarar SnipCommand 0.1.0. The sources describe stored XSS and potential command execution impact, but do not provide confirmed patch status or observed exploitation.
Mitigation direction
- Identify whether SnipCommand 0.1.0 is installed or distributed internally.
- Check the SnipCommand repository and advisory sources for vendor guidance or updates.
- Avoid opening or importing untrusted snippets in affected environments.
- Restrict access to affected SnipCommand instances or workflows where possible.
- Remove or replace SnipCommand 0.1.0 if no safe update is available.
Validation and detection
- Inventory endpoints and repositories for SnipCommand 0.1.0 usage.
- Review snippet storage for unexpected script content in titles or file fields.
- Confirm whether users exchange SnipCommand snippets from untrusted sources.
- Monitor security tools for browser-script execution linked to SnipCommand usage.
- Document compensating controls if the affected version remains in use.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-47841 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-49829CVE reference · exploit
- SnipCommand GitHub RepositoryCVE reference · product
- Proof of Concept VideoCVE reference · exploit
- VulnCheck Advisory: SnipCommand 0.1.0 - Persistent Cross-Site ScriptingCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.