CVE-2018-8908: An issue was discovered in /admin/?/user/add in Frog CMS 0.9.5

This month

HIGH 8.8DOWNGRADE

CVE-2018-8908 is a high-severity flaw (CVSS 8.8) affecting frog cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in /admin/?/user/add in Frog CMS 0.9.5. The application's add user functionality suffers from CSRF. A malicious user can craft an HTML page and use it to trick a victim into clicking on it; once executed, a malicious user will be created with admin privileges. This happens due to lack of an anti-CSRF token in state modification requests.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Weakness	CWE-352
Published	2018-03-31
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

2018-03-31 22:29 UTCPublished CVE record published
2026-06-17 02:05 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 Request Forgery (Add User)

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-2018-8908?

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

Is CVE-2018-8908 being exploited?

CVE-2018-8908 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-2018-8908 affect?

CVE-2018-8908 affects frog cms. Severity is high (CVSS 8.8). An issue was discovered in /admin/?/user/add in Frog CMS 0.9.5. The application's add user functionality suffers from CSRF. A malicious user can craft an HTML page and use it to trick a victim into clicking on it; once executed, a malicious

How urgent is CVE-2018-8908?

Priority 56/100. High severity; Public exploit reference

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-2018-20778 MEDIUM 6.1 DOWNGRADE admin/?/plugin/file_manager in Frog CMS 0.9.5 allows XSS by creating a new file containing a crafted attribute

References

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