CVE-2026-30661: iCMS v8.0.0 contains a Cross-Site Scripting (XSS) vulnerability in the User Management component, specifically

Routine

MEDIUM 6.1DOWNGRADE

CVE-2026-30661 is a medium-severity flaw (CVSS 6.1) affecting icms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

iCMS v8.0.0 contains a Cross-Site Scripting (XSS) vulnerability in the User Management component, specifically within the index.html file. This allows remote attackers to execute arbitrary web script or HTML via the regip or loginip parameters.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-03-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: idreamsoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-24 15:16 UTCPublished CVE record published
2026-06-17 10:32 UTCUpdated Record last modified

idreamsoft icms DOWNGRADE

Affected: 8.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0.0

1. Check installed version

apt-cache policy icms || rpm -q icms || icms --version

2. No fixed release: DOWNGRADE to a release before 8.0.0 (Debian / Ubuntu)

apt-cache madison icms sudo apt install icms=<VERSION_BEFORE_8.0.0> sudo apt-mark hold icms

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list icms sudo dnf downgrade icms-<VERSION_BEFORE_8.0.0> sudo dnf versionlock add icms

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-30661?

icms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-30661 being exploited?

CVE-2026-30661 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-2026-30661 affect?

CVE-2026-30661 affects icms. Severity is medium (CVSS 6.1). iCMS v8.0.0 contains a Cross-Site Scripting (XSS) vulnerability in the User Management component, specifically within the index.html file. This allows remote attackers to execute arbitrary web script or HTML via the regip or loginip paramet

How urgent is CVE-2026-30661?

Priority 29/100. Public exploit reference

References

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