CVE-2026-43980CWE-79cross-site-scripting

CVE-2026-43980

Medium · published August 22, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
24.3
In the wild
Unconfirmed
What it is

Malla is a web analyzer for Meshtastic networks based on MQTT data. Prior to commit 4086e2b5f61615a813b70b25bc76095083552135, code names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping. Any participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor. Commit 4086e2b5f61615a813b70b25bc76095083552135 fixes the issue.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00325 · 24.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-22T02:16Z
References (4)
https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml · [email protected]https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135 · [email protected]https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm · [email protected]https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 21 AUG 21:17Z
    Malla: Stored XSS via Meshtastic node names in multiple frontend pages
    cvelistv5