How severe is CVE-2018-8766?

CVE-2018-8766 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-2018-8766 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8766?

CVE-2018-8766 affects Joyplus-cms Project Joyplus-cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8766?

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-2018-8766 published?

CVE-2018-8766 was published on 2018-03-18 and last updated on 2026-06-17.

CVE-2018-8766

CVE-2018-8766 is a critical-severity vulnerability in Joyplus-cms Project Joyplus-cms 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Joyplus-cms Project Joyplus-cms
Published: 2018-03-18
Last modified: 2026-06-17

Description

joyplus-cms 1.6.0 allows Remote Code Execution because of an Arbitrary File Upload issue in manager/editor/upload.php, related to manager/admin_vod.php?action=add.

Frequently asked questions

What is CVE-2018-8766?: joyplus-cms 1.6.0 allows Remote Code Execution because of an Arbitrary File Upload issue in manager/editor/upload.php, related to manager/admin_vod.php?action=add.
How severe is CVE-2018-8766?: CVE-2018-8766 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-2018-8766 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8766?: CVE-2018-8766 affects Joyplus-cms Project Joyplus-cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8766?: 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-2018-8766 published?: CVE-2018-8766 was published on 2018-03-18 and last updated on 2026-06-17.

References

https://github.com/joyplus/joyplus-cms/issues/421

Affected products (1)

cpe:2.3:a:joyplus-cms_project:joyplus-cms:1.6.0:*:*:*:*:*:*:*

More vulnerabilities in Joyplus-cms Project Joyplus-cms

CVE-2018-14389 — Critical (CVSS 9.8): joyplus-cms 1.6.0 has SQL Injection via the manager/admin_ajax.php val parameter.
CVE-2018-14334 — Critical (CVSS 9.8): manager/editor/upload.php in joyplus-cms 1.6.0 allows arbitrary file upload because detection of a prohibited file…
CVE-2018-12039 — Critical (CVSS 9.8): joyplus-cms 1.6.0 allows Remote Code Execution because of an Arbitrary SQL command execution issue in manager/index.php…
CVE-2018-8717 — High (CVSS 8.8): joyplus-cms 1.6.0 has CSRF, as demonstrated by adding an administrator account via a…
CVE-2020-20636 — High (CVSS 7.5): SQL injection vulnerability found in Joyplus-cms v.1.6.0 allows a remote attacker to access sensitive information via…
CVE-2020-22124 — High (CVSS 7.5): A vulnerability in the \inc\config.php component of joyplus-cms v1.6 allows attackers to access sensitive information.

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