Security readout for executives and security teams
Plain-English summary
This is a stored XSS issue in OpenWrt LuCI’s SSH keys page. A crafted public key comment could cause script or HTML to run when a user views the affected interface. Business risk is usually bounded to managed router administration, but a compromised admin session could affect device management decisions.
Executive priority
Treat this as a moderate-priority remediation for OpenWrt-managed environments. Prioritize internet-exposed or broadly accessible LuCI interfaces, shared administration environments, and devices where router administration compromise would disrupt business operations.
Technical view
CVE-2022-41435 affects OpenWrt LuCI git-22.140.66206-02913be in /system/sshkeys.js. The reported flaw is CWE-79 stored XSS through crafted public key comments. CVSS 3.1 is 5.4 with network attack vector, low complexity, low privileges, required user interaction, changed scope, and low confidentiality and integrity impact.
Likely exposure
Exposure is most likely on OpenWrt devices running the affected LuCI build and using the LuCI web administration interface. The source bundle does not provide complete affected product or version ranges beyond the named LuCI git version.
Exploitation context
The CVSS vector indicates exploitation requires low privileges and user interaction. The vulnerability is stored, so malicious content would persist until removed. The source bundle does not report active exploitation, and this CVE is not listed as CISA KEV.
Researcher notes
Evidence is limited to the CVE description, CVSS data, a GitHub commit reference, and a public gist. The affected range is not fully enumerated in the bundle, so version validation should rely on OpenWrt/LuCI package metadata and vendor guidance.
Mitigation direction
- Check OpenWrt LuCI vendor guidance for fixed packages or branches.
- Update LuCI/OpenWrt to a build containing the referenced upstream fix.
- Restrict LuCI access to trusted management networks or VPN users.
- Remove untrusted or suspicious SSH public key comments from managed devices.
- Limit accounts allowed to manage SSH keys in LuCI.
Validation and detection
- Inventory OpenWrt devices using the LuCI web interface.
- Identify whether LuCI git-22.140.66206-02913be is deployed.
- Confirm deployed LuCI includes the referenced upstream commit or later vendor fix.
- Review SSH public key comments for unexpected markup or script-like content.
- Verify LuCI is not exposed to untrusted networks.
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 lookupCVE-2022-41435 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
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:R/S:C/C:L/I:L/A:N2.32.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source materials
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.