How severe is CVE-2017-9451?

CVE-2017-9451 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-9451 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-9451?

CVE-2017-9451 affects Flatcore. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9451?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-9451 published?

CVE-2017-9451 was published on 2017-06-06 and last updated on 2026-06-17.

CVE-2017-9451

CVE-2017-9451 is a medium-severity vulnerability in Flatcore with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Flatcore
Published: 2017-06-06
Last modified: 2026-06-17

Description

Cross site scripting (XSS) vulnerability in pages.edit_form.php in flatCore 1.4.6 allows remote attackers to inject arbitrary JavaScript via the PATH_INFO in an acp.php URL, due to use of unsanitized $_SERVER['PHP_SELF'] to generate URLs.

Frequently asked questions

What is CVE-2017-9451?: Cross site scripting (XSS) vulnerability in pages.edit_form.php in flatCore 1.4.6 allows remote attackers to inject arbitrary JavaScript via the PATH_INFO in an acp.php URL, due to use of unsanitized $_SERVER['PHP_SELF'] to generate URLs.
How severe is CVE-2017-9451?: CVE-2017-9451 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-9451 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-9451?: CVE-2017-9451 affects Flatcore. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9451?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-9451 published?: CVE-2017-9451 was published on 2017-06-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:flatcore:flatcore:1.4.6:*:*:*:*:*:*:*

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