CVE-2019-7438

MEDIUM

JioFi 4G M2S 1.0.2 - Cross-Site Scripting via mask POST Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-7438. PoCs published by Vikas Chaudhary.

AI-analyzed exploit summary This exploit demonstrates an HTML injection vulnerability in JioFi 4G M2S routers via the 'mask' parameter in the '/cgi-bin/qcmap_web_cgi' endpoint. The PoC injects a fake login page to deceive users into submitting credentials to an attacker-controlled site.

Description

cgi-bin/qcmap_web_cgi on JioFi 4G M2S 1.0.2 devices has XSS and HTML injection via the mask POST parameter.

Exploits (1)

exploitdb WORKING POC
by Vikas Chaudhary · textwebappshardware
https://www.exploit-db.com/exploits/46751

This exploit demonstrates an HTML injection vulnerability in JioFi 4G M2S routers via the 'mask' parameter in the '/cgi-bin/qcmap_web_cgi' endpoint. The PoC injects a fake login page to deceive users into submitting credentials to an attacker-controlled site.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: JioFi 4G Hotspot M2S 150 Mbps Wireless Router (1.0.2)
No auth needed
Prerequisites: Network access to the vulnerable router · User interaction to trigger the payload
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory x_refsource_misc
https://gkaim.com/cve-2019-7438-xss-vikas-chaudhary/
Exploit, Third Party Advisory x_refsource_misc
https://gkaim.com/cve-2019-7438-html-vikas-chaudhary/
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/46751/

Scores

CVSS v3 6.1
EPSS 0.0399
EPSS Percentile 89.2%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
jio/jiofi_4g_m2s_firmware 1.0.2
Published Mar 21, 2019
Tracked Since Feb 18, 2026