# CVE-2026-3880: Zohocorp ManageEngine Exchange Reporter Plus Stored XSS in Reports

Source: https://junglewise.ai/threats/cve-2026-3880-zohocorp-manageengine-exchange-reporter-plus-stored-xss-in-reports  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-03. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-3880 · Severity: high · CVSS 7.3 · Published 2026-04-03

ManageEngine Exchange Reporter Plus, a tool used for monitoring and reporting on Microsoft Exchange environments, is vulnerable to a security flaw in its reporting module. An attacker with basic access can inject malicious scripts into the Public Folder Client Permissions report. If an administrator views this report, the attacker could potentially take control of their session, leading to unauthorized data access or administrative actions within the software.

## Quick answers

**Is CVE-2026-3880 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-3880 being exploited in the wild.

**How severe is CVE-2026-3880?** High severity, with a CVSS score of 7.3, published 3 April 2026.

**Which products and versions are affected?** Zohocorp ManageEngine Exchange Reporter Plus Builds 5801 and below.

**Is there a fix for CVE-2026-3880?** A patch was published on 2026-03-19: Fixed in version 5802 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-3880 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-3880?** Check whether anything you run is named in the advisory. 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 stored cross-site scripting (XSS) vulnerability exists in ManageEngine Exchange Reporter Plus builds 5801 and below. The flaw is located within the 'Public Folder Client Permissions' report component due to improper neutralization of input during web page generation (CWE-79). An authenticated attacker with low-level privileges can inject malicious scripts that are subsequently executed in the browser of any user (typically an administrator) who views the affected report. This could lead to session hijacking or unauthorized actions performed on behalf of the victim. The issue is resolved in version 5802 through improved input validation.

## Affected products

- Zohocorp ManageEngine Exchange Reporter Plus Builds 5801 and below

## Timeline

- 2026-03-19: patched: Fixed in version 5802
- 2026-04-03: advisory: Initial advisory published by ManageEngine
- 2026-04-03: disclosed: CVE-2026-3880 published to NVD

## References

- [https://www.manageengine.com/products/exchange-reports/advisory/CVE-2026-3880.html](https://www.manageengine.com/products/exchange-reports/advisory/CVE-2026-3880.html)