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TA488 May Have Exploited Outlook Web Access 0-Day Flaw Before Microsoft’s Emergency Patch

TA488 has been linked to a new campaign that turns a routine Outlook Web Access email into a gateway for mailbox compromise. The operation abused a now-patched cross-site scripting flaw, tracked as CVE-2026-42897, and could run malicious code when a recipient opened a message in the webmail interface. The campaign targeted government bodies and organizations […] The post TA488 May Have Exploited Outlook Web Access 0-Day Flaw Before Microsoft’s Emergency Patch appeared first on Cyber Security News.
TA488 has been linked to a new campaign that turns a routine Outlook Web Access email into a gateway for mailbox compromise. The operation abused a now-patched cross-site scripting flaw, tracked as CVE-2026-42897, and could run malicious code when a recipient opened a message in the webmail interface. The campaign targeted government bodies and organizations in telecommunications, finance, hospitality, and aerospace across the United States and Europe. Unlike common…
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