CVE-2026-118152: Microsoft Exchange Server CSRF spoofing

CVE-2026-118152 · Severity: medium · CVSS 6.5 · Published 2026-11-10

Microsoft Exchange Server, which handles email and calendaring for organizations, contains a cross-site request forgery vulnerability that allows an attacker to perform unauthorized actions on behalf of legitimate users. An attacker could manipulate a user's browser to send malicious requests to the Exchange Server, potentially leading to account compromise, email manipulation, or information disclosure.

Technologies: Microsoft Exchange Server. Vendors: Microsoft.

Quick answers

Is CVE-2026-118152 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-118152 being exploited in the wild.
How severe is CVE-2026-118152?
Medium severity, with a CVSS score of 6.5, published 10 November 2026.
Which products and versions are affected?
Microsoft Exchange Server.
Is there a fix for CVE-2026-118152?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-118152 attacked?
It is attacked over the network.
Am I affected by CVE-2026-118152?
Check whether you run Microsoft Exchange Server. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A cross-site request forgery vulnerability in Microsoft Exchange Server permits an unauthenticated attacker to forge requests that execute with the privileges of an authenticated user through a network vector. The vulnerability requires user interaction (a victim must visit a malicious webpage while authenticated to Exchange), but can result in account takeover or sensitive data access depending on the victim's permissions.

Affected products

  • Microsoft Exchange Server

Timeline

  • 2026-11-10: disclosed

References

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