CVE-2017-11167: FineCMS 2.1.0 allows remote attackers to execute arbitrary PHP code by using a URL Manager "Add Site" action t

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2017-11167 is a critical-severity flaw (CVSS 9.8) affecting finecms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FineCMS 2.1.0 allows remote attackers to execute arbitrary PHP code by using a URL Manager "Add Site" action to enter this code after a ', sequence in a domain name, as demonstrated by the ',phpinfo() input value.

Why this priority

Critical severity
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	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-94
Published	2017-07-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: finecms project

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

Am I affected?

Timeline

2017-07-12 13:29 UTCPublished CVE record published
2026-06-17 01:01 UTCUpdated Record last modified

finecms project finecms DOWNGRADE

Affected: 2.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1.0 (Debian / Ubuntu)

apt-cache madison finecms sudo apt install finecms=<VERSION_BEFORE_2.1.0> sudo apt-mark hold finecms

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

dnf --showduplicates list finecms sudo dnf downgrade finecms-<VERSION_BEFORE_2.1.0> sudo dnf versionlock add finecms

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-2017-11167?

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

Is CVE-2017-11167 being exploited?

CVE-2017-11167 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-2017-11167 affect?

CVE-2017-11167 affects finecms. Severity is critical (CVSS 9.8). FineCMS 2.1.0 allows remote attackers to execute arbitrary PHP code by using a URL Manager "Add Site" action to enter this code after a ', sequence in a domain name, as demonstrated by the ',phpinfo() input value.

How urgent is CVE-2017-11167?

Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

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References

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