CVE-2017-6511: andrzuk/FineCMS before 2017-03-06 is vulnerable to a reflected XSS in index.php because of missing validation

Q: How do I fix CVE-2017-6511?

finecms: upgrade to newer than 2017-02-10. Exact commands for each OS are on this page.

Q: Is CVE-2017-6511 being exploited?

CVE-2017-6511 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-6511 affect?

CVE-2017-6511 affects finecms. Severity is medium (CVSS 6.1). andrzuk/FineCMS before 2017-03-06 is vulnerable to a reflected XSS in index.php because of missing validation of the action parameter in application/classes/application.php.

Q: How urgent is CVE-2017-6511?

Priority 40/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2017-6511 is a medium-severity flaw (CVSS 6.1) affecting finecms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

andrzuk/FineCMS before 2017-03-06 is vulnerable to a reflected XSS in index.php because of missing validation of the action parameter in application/classes/application.php.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-03-07
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

2017-03-07 19:59 UTCPublished CVE record published
2026-06-17 01:22 UTCUpdated Record last modified

finecms project finecms UPGRADE

Affected: <= 2017-02-10

Fixed in: newer than 2017-02-10

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2017-02-10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade finecms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade finecms

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2017-6511?

finecms: upgrade to newer than 2017-02-10. Exact commands for each OS are on this page.

Is CVE-2017-6511 being exploited?

CVE-2017-6511 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-2017-6511 affect?

CVE-2017-6511 affects finecms. Severity is medium (CVSS 6.1). andrzuk/FineCMS before 2017-03-06 is vulnerable to a reflected XSS in index.php because of missing validation of the action parameter in application/classes/application.php.

How urgent is CVE-2017-6511?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

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CVE-2018-18191 HIGH 8.8 DOWNGRADE Cross-site request forgery (CSRF) vulnerability in /admin.php?c=member&m=edit&uid=1 in dayrui FineCms 5.4 allo
CVE-2017-9252 MEDIUM 6.1 MITIGATE andrzuk/FineCMS through 2017-05-28 is vulnerable to a reflected XSS in the search page via the text-search par
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References

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