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THREAT OPS › Threat News › [NVD] CVE-2026-25789 (HIGH 7.1) — Affected devices do not properly validate and sanitize filenames on the Firmware Update page. This could allow a remote attacker to social engineer the user into selecting the modified firmware file to be uploaded. This would result in malitcious JavaScript execution in the cont

[NVD] CVE-2026-25789 (HIGH 7.1) — Affected devices do not properly validate and sanitize filenames on the Firmware Update page. This could allow a remote attacker to social engineer the user into selecting the modified firmware file to be uploaded. This would result in malitcious JavaScript execution in the cont

lownvdPublished 2026-05-12

CVE-2026-25789 CVSS: 7.1 HIGH Published: 2026-05-12T10:16:45.037

Affected devices do not properly validate and sanitize filenames on the Firmware Update page. This could allow a remote attacker to social engineer the user into selecting the modified firmware file to be uploaded. This would result in malitcious JavaScript execution in the context of the authenticated user's session without requir

MITRE ATT&CK techniques

JavaScriptT1059.007

Indicators of compromise

CVE-2026-25789cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-25789