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CVE-2026-78838

MediumPublished

A reflected cross-site scripting (XSS) vulnerability in the grid_datasource.php component of AppNitro MachForm v30 allows attackers to execute arbitrary...

Published: Sep 8, 2026
Updated: Sep 9, 2026
Assigning CNA: mitre
Evidence observed: Sep 8, 2026

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS probability estimate

0.4%

Low · next 30 days

Percentile: 30.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A reflected cross-site scripting (XSS) vulnerability in the grid_datasource.php component of AppNitro MachForm v30 allows attackers to execute arbitrary Javascript in the context of the victim's browser via injecting a crafted payload into the filter[filters][0][field] parameter.

Sources

CVE-2026-78838PoC
Repository dedicated to CVE-2026-78838, providing analysis and potential proof-of-concept for the vulnerability.

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