CVE Catalog

CVE-2026-77139

MediumCVSS 6.0
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.29%

21th percentile - higher than 21% of all known CVEs

Summary

The extension fails to validate a client-supplied template element key before using it to build file paths for saving and deleting Mask template files. An authenticated backend user with access to the Mask module can supply a key containing path traversal sequences to create or delete .html files outside the configured template directory.

Risk Assessment

An attacker can write or delete files outside the intended directory, potentially leading to unauthorized file modification, integrity compromise, or injection of malicious content.

Recommendation

Update the extension to a version that fixes template key validation, or manually restrict access to the Mask module to trusted users only.

Related vulnerabilities

Original NVD description (English source)

The extension fails to validate a client-supplied template element key before using it to build file paths for saving and deleting Mask template files. An authenticated backend user with access to the Mask module can supply a key containing path traversal sequences to create or delete .html files outside the configured template directory.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS