# CVE-2026-118152: Microsoft Exchange Server CSRF spoofing

Source: https://junglewise.ai/threats/cve-2026-118152-cross-site-request-forgery-csrf-in-microsoft-exchange-server  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/exchange-server). Vendors: [Microsoft](https://junglewise.ai/threats/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

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118152](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118152)

## Related threats

- [Microsoft Exchange Server improper access control spoofing](https://junglewise.ai/threats/cve-2026-118208-improper-access-control-in-microsoft-exchange-server-allows-an)
- [Microsoft Exchange Server improper input validation code execution](https://junglewise.ai/threats/cve-2026-118207-improper-input-validation-in-microsoft-exchange-server-allows-an)
- [Microsoft Exchange Server weak authentication privilege elevation](https://junglewise.ai/threats/cve-2026-118157-weak-authentication-in-microsoft-exchange-server-allows-an)
- [Microsoft Exchange Server privilege elevation via untrusted security decision input](https://junglewise.ai/threats/cve-2026-118154-reliance-on-untrusted-inputs-in-a-security-decision-in-microsoft)
- [Microsoft Exchange Server algorithmic complexity denial of service](https://junglewise.ai/threats/cve-2026-118153-inefficient-algorithmic-complexity-in-microsoft-exchange-server)