CVE-2014-4912: An Arbitrary File Upload issue was discovered in Frog CMS 0.9.5 due to lack of extension validation.

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2014-4912 is a critical-severity flaw (CVSS 9.8) affecting frog cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Arbitrary File Upload issue was discovered in Frog CMS 0.9.5 due to lack of extension validation.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	8.1% (top 5%)
CISA exploited list	No
Weakness	CWE-434
Published	2018-03-22
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

2018-03-22 04:29 UTCPublished CVE record published
2026-06-17 00:10 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 - Arbitrary File Upload

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-2014-4912?

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

Is CVE-2014-4912 being exploited?

CVE-2014-4912 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-2014-4912 affect?

CVE-2014-4912 affects frog cms. Severity is critical (CVSS 9.8). An Arbitrary File Upload issue was discovered in Frog CMS 0.9.5 due to lack of extension validation.

How urgent is CVE-2014-4912?

Priority 68/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

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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