CVE-2026-24433: Tenda W30E V2 Stored XSS via Username Field
Shenzhen Tenda W30E V2 firmware versions up to and including V16.01.0.19(5037) contain a stored cross-site scripting vulnerability in the user creation functionality. Insufficient input validation allows attacker-controlled script content to be stored and later executed when administrative users access the affected management pages.
Security readout for executives and security teams
Plain-English summary
A user with access to create accounts on a Tenda W30E V2 could store malicious browser content in the username field. When an administrator later views the affected management page, that content may run in the administrator’s browser, creating risk to device administration and session integrity.
Executive priority
Treat this as a moderate operational security issue. It is not documented as actively exploited, but affected edge/network management devices should be reviewed because compromise of administrative browser sessions can affect device control.
Technical view
CVE-2026-24433 is a CWE-79 stored cross-site scripting issue in Tenda W30E V2 user creation. Sources identify firmware up to and including V16.01.0.19(5037). The CVSS 4.0 score is 5.1, with network access, low privileges, and passive user interaction required.
Likely exposure
Likely exposure is limited to organizations using Tenda W30E V2 devices on affected firmware. Risk increases if the management interface is reachable outside a trusted administration network. The provided affected-product metadata is sparse, so asset and firmware confirmation is necessary.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Exploitation appears to require an attacker who can create or influence a user record and an administrator later viewing the affected management page.
Researcher notes
Evidence supports stored XSS in the username field, but the bundle does not include a vendor fix, exploit activity, or complete CPE data. Avoid assuming broader Tenda product impact without additional vendor confirmation.
Mitigation direction
Check Tenda and VulnCheck advisories for updated firmware or vendor workarounds.
Restrict device management access to trusted admin networks or VPN.
Remove unnecessary low-privilege management users from affected devices.
Review existing usernames for unexpected script-like content.
Monitor vendor guidance for a confirmed fixed firmware release.
Validation and detection
Inventory Tenda W30E V2 devices and record firmware versions.
Flag firmware up to and including V16.01.0.19(5037) for review.
Confirm management interfaces are not internet-exposed.
Review administrative user records for suspicious stored content.
After remediation, verify username rendering is safely encoded in admin pages.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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 · medium confidence lookup
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.
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.
We 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.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-79 · source CWE mapping
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.