CVE-2004-1490: Opera 7.54 and earlier allows remote attackers to spoof file types in the download dialog via dots and non-...

Security readout for executives and security teams

This old Opera browser issue could make a downloaded file look like a different file type in the save dialog. The business risk is users trusting a misleading prompt and opening unsafe content. It matters mainly where Opera 7.54 or earlier still exists. Exposure is limited to systems still running Opera 7.54 or earlier. This is most plausible on legacy desktops, old Linux images, lab systems, or unmanaged endpoints. The provided sources do not identify modern Opera versions as affected. Treat this as a legacy hygiene issue unless affected Opera versions remain in use. If found, prioritize removal because the browser is obsolete and the flaw supports deceptive downloads. Mitigation focus: Inventory and remove Opera 7.54 or earlier from managed systems.; Update affected Opera installations using vendor or distribution guidance.; Block legacy browser use in enterprise endpoint policy where possible..

Prepared

Jun 30, 2026, 00:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.