Cyber Resilience

CVE-2022-40844

MediumPublic PoC

Published: 15 November 2022

Published
15 November 2022
Modified
07 July 2025
KEV Added
—
Patch
—
CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0028 51.6th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-40844 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Tenda W15E Firmware. Its CVSS base score is 5.4 (Medium).

Operationally, ranked in the top 48.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

In Tenda (Shenzhen Tenda Technology Co., Ltd) AC1200 Router model W15Ev2 V15.11.0.10(1576), a Stored Cross Site Scripting (XSS) issue exists allowing an attacker to execute JavaScript code via the applications website filtering tab, specifically the URL body.

CWE(s)
CWE-79

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

tenda
w15e firmware
15.11.0.10\(1576\)

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References