CVE-2018-20448: Frog CMS 0.9.5 has XSS via the Database name field to the /install/index.php URI.

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MEDIUM 5.4DOWNGRADE

CVE-2018-20448 is a medium-severity flaw (CVSS 5.4) affecting frog cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Frog CMS 0.9.5 has XSS via the Database name field to the /install/index.php URI.

Why this priority

Public exploit reference

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	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-12-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: frog cms project

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

Am I affected?

Timeline

2018-12-25 16:29 UTCPublished CVE record published
2026-06-17 01:52 UTCUpdated Record last modified

frog cms project frog cms DOWNGRADE

Affected: 0.9.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.9.5 (Debian / Ubuntu)

apt-cache madison frog-cms sudo apt install frog-cms=<VERSION_BEFORE_0.9.5> sudo apt-mark hold frog-cms

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

dnf --showduplicates list frog-cms sudo dnf downgrade frog-cms-<VERSION_BEFORE_0.9.5> sudo dnf versionlock add frog-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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Frog CMS 0.9.5 - Cross-Site Scripting

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-2018-20448?

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

Is CVE-2018-20448 being exploited?

CVE-2018-20448 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-2018-20448 affect?

CVE-2018-20448 affects frog cms. Severity is medium (CVSS 5.4). Frog CMS 0.9.5 has XSS via the Database name field to the /install/index.php URI.

How urgent is CVE-2018-20448?

Priority 43/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2019-6243 MEDIUM 6.1 DOWNGRADE Frog CMS 0.9.5 allows XSS via the forgot password page (aka the /admin/?/login/forgot URI).
CVE-2019-1010235 MEDIUM 5.4 DOWNGRADE Frog CMS 1.1 is affected by: Cross Site Scripting (XSS)
CVE-2018-9992 MEDIUM 4.8 DOWNGRADE Frog CMS 0.9.5 has XSS via the name field of a new "File" or "Directory" on the admin/?/plugin/file_manager/br
CVE-2018-9991 MEDIUM 4.8 DOWNGRADE Frog CMS 0.9.5 has XSS via the /admin/?/user/add Name or Username parameter.
CVE-2018-8908 HIGH 8.8 DOWNGRADE An issue was discovered in /admin/?/user/add in Frog CMS 0.9.5

References

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