CVE-2026-30279

High

Published: 31 March 2026

Published

31 March 2026

Modified

03 April 2026

KEV Added

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Patch

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CVSS Score 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0003 7.3th percentile

Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-30279 is a high-severity Path Traversal (CWE-22) vulnerability in Squareapps My Location. Its CVSS base score is 8.4 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 7.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and SI-10 (Information Input Validation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploitation for Privilege Escalation (T1068) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Validates inputs during the file import process to block malicious file paths and contents that enable arbitrary file overwrites.

AC-3 Access Enforcement good match

prevent

Enforces access control policies to restrict the file import process from writing to unauthorized critical internal files.

SI-7 Software, Firmware, and Information Integrity good match

detect

Performs integrity checks on critical files to detect unauthorized overwrites from the vulnerable file import process.

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.

attack.mitre.org →

T1203 Exploitation for Client Execution Execution

Adversaries may exploit software vulnerabilities in client applications to execute code.

attack.mitre.org →

Why these techniques?

Arbitrary file overwrite (CWE-22) in local app import process directly enables local code execution via critical file replacement, mapping to exploitation for client execution and privilege escalation.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

NVD Description

An arbitrary file overwrite vulnerability in Squareapps LLC My Location Travel Timeline v11.80 allows attackers to overwrite critical internal files via the file import process, leading to arbitrary code execution or information exposure.

Deeper analysisAI

CVE-2026-30279 is an arbitrary file overwrite vulnerability (CWE-22) in Squareapps LLC My Location Travel Timeline version 11.80. The issue arises in the file import process, which allows attackers to overwrite critical internal files. This can lead to arbitrary code execution or information exposure. The vulnerability has a CVSS v3.1 base score of 8.4 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) and was published on 2026-03-31T18:16:47.003.

A local attacker can exploit this vulnerability with low complexity and no required privileges or user interaction. By crafting a malicious file for import, the attacker can target and overwrite sensitive internal files, achieving high impacts on confidentiality, integrity, and availability. Potential outcomes include executing arbitrary code on the system or exposing sensitive information stored in overwritten files.

Mitigation details and additional advisories are available in the following references: http://my.com, https://github.com/Secsys-FDU/AF_CVEs/issues/28, https://lightapp3.firebaseapp.com/, and https://secsys.fudan.edu.cn/.