CVE-2018-7261: There are multiple Persistent XSS vulnerabilities in Radiant CMS 1.1.4

Routine

MEDIUM 5.4DOWNGRADE

CVE-2018-7261 is a medium-severity flaw (CVSS 5.4) affecting radiant cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

There are multiple Persistent XSS vulnerabilities in Radiant CMS 1.1.4. They affect Personal Preferences (Name and Username) and Configuration (Site Title, Dev Site Domain, Page Parts, and Page Fields).

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-02-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: radiantcms

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

Am I affected?

Timeline

2018-02-21 16:29 UTCPublished CVE record published
2026-06-17 02:02 UTCUpdated Record last modified

radiantcms radiant cms DOWNGRADE

Affected: 1.1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.4

1. Check installed version

apt-cache policy radiant-cms || rpm -q radiant-cms || radiant-cms --version

2. No fixed release: DOWNGRADE to a release before 1.1.4 (Debian / Ubuntu)

apt-cache madison radiant-cms sudo apt install radiant-cms=<VERSION_BEFORE_1.1.4> sudo apt-mark hold radiant-cms

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

dnf --showduplicates list radiant-cms sudo dnf downgrade radiant-cms-<VERSION_BEFORE_1.1.4> sudo dnf versionlock add radiant-cms

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-2018-7261?

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

Is CVE-2018-7261 being exploited?

CVE-2018-7261 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-2018-7261 affect?

CVE-2018-7261 affects radiant cms. Severity is medium (CVSS 5.4). There are multiple Persistent XSS vulnerabilities in Radiant CMS 1.1.4. They affect Personal Preferences (Name and Username) and Configuration (Site Title, Dev Site Domain, Page Parts, and Page Fields).

How urgent is CVE-2018-7261?

Priority 31/100. No elevated risk signals yet.

Related CVEs

CVE-2018-5216 MEDIUM 5.4 DOWNGRADE Radiant CMS 1.1.4 has XSS via crafted Markdown input in the part_body_content parameter to an admin/pages/*/ed

References

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