CVE-2026-28703: Zohocorp ManageEngine Exchange Reporter Plus versions before 5802 are vulnerable to Stored XSS in Mails Exchan

Q: How do I fix CVE-2026-28703?

manageengine exchange reporter plus: upgrade to 5.8. Exact commands for each OS are on this page.

Q: Is CVE-2026-28703 being exploited?

CVE-2026-28703 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-28703 affect?

CVE-2026-28703 affects manageengine exchange reporter plus. Severity is high (CVSS 7.3). Zohocorp ManageEngine Exchange Reporter Plus versions before 5802 are vulnerable to Stored XSS in Mails Exchanged Between Users report.

Routine

HIGH 7.3UPGRADE

CVE-2026-28703 is a high-severity flaw (CVSS 7.3) affecting manageengine exchange reporter plus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Zohocorp ManageEngine Exchange Reporter Plus versions before 5802 are vulnerable to Stored XSS in Mails Exchanged Between Users report.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-04-03
Last modified	2026-07-24

Publisher (CNA): ManageEngine · Vendor: zohocorp

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-03 12:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

zohocorp manageengine exchange reporter plus UPGRADE

Affected: < 5.8 · 5.8 · 5.8 5800 · 5.8 5801

Fixed in: 5.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy manageengine-exchange-reporter-plus || rpm -q manageengine-exchange-reporter-plus || manageengine-exchange-reporter-plus --version

2. UPGRADE to 5.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade manageengine-exchange-reporter-plus

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade manageengine-exchange-reporter-plus

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-28703?

manageengine exchange reporter plus: upgrade to 5.8. Exact commands for each OS are on this page.

Is CVE-2026-28703 being exploited?

CVE-2026-28703 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-28703 affect?

CVE-2026-28703 affects manageengine exchange reporter plus. Severity is high (CVSS 7.3). Zohocorp ManageEngine Exchange Reporter Plus versions before 5802 are vulnerable to Stored XSS in Mails Exchanged Between Users report.

How urgent is CVE-2026-28703?

Priority 37/100. High severity

Software pages

Zoho ManageEngine vulnerabilities

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References

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