How severe is CVE-2017-16903?

CVE-2017-16903 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-16903 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16903?

CVE-2017-16903 affects Lvyecms Project Lvyecms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16903?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-16903 published?

CVE-2017-16903 was published on 2017-11-20 and last updated on 2026-06-17.

CVE-2017-16903

CVE-2017-16903 is a critical-severity vulnerability in Lvyecms Project Lvyecms with a CVSS 3.x base score of 9.8. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Lvyecms Project Lvyecms
Published: 2017-11-20
Last modified: 2026-06-17

Description

LvyeCMS through 3.1 allows remote attackers to upload and execute arbitrary PHP code via directory traversal sequences in the dir parameter, in conjunction with PHP code in the content parameter, within a template Style add request to index.php.

Frequently asked questions

What is CVE-2017-16903?: LvyeCMS through 3.1 allows remote attackers to upload and execute arbitrary PHP code via directory traversal sequences in the dir parameter, in conjunction with PHP code in the content parameter, within a template Style add request to index.php.
How severe is CVE-2017-16903?: CVE-2017-16903 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-16903 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16903?: CVE-2017-16903 affects Lvyecms Project Lvyecms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-16903 published?: CVE-2017-16903 was published on 2017-11-20 and last updated on 2026-06-17.

References

https://github.com/SQYY/CVE/blob/master/Lvyecms_G.txt

Affected products (1)

cpe:2.3:a:lvyecms_project:lvyecms:*:*:*:*:*:*:*:*

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