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CVE Record

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.

MediumCVSS 5.1Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

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.
Prepared
Confidence
medium
Sources
4

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-24433 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.1 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Official CVE source material

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.

1CVSS vectors
3Timeline events
1ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

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.

ScoreVersionSeverityVectorExploitImpactSource
5.1CVSS 4.0MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:NVulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

5.1Medium
CVSS 4.0 vector shape for CVE-2026-24433Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Shenzhen Tenda Technology Co., Ltd.W30E V20unknown
Weakness

CWE details

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.