How severe is CVE-2020-20718?

CVE-2020-20718 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-2020-20718 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-20718?

CVE-2020-20718 affects Pluck-cms Pluckcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-20718?

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-2020-20718 published?

CVE-2020-20718 was published on 2023-06-20 and last updated on 2026-06-17.

CVE-2020-20718

CVE-2020-20718 is a critical-severity vulnerability in Pluck-cms Pluckcms 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)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Pluck-cms Pluckcms
Published: 2023-06-20
Last modified: 2026-06-17

Description

File Upload vulnerability in PluckCMS v.4.7.10 dev versions allows a remote attacker to execute arbitrary code via a crafted image file to the the save_file() parameter.

Frequently asked questions

What is CVE-2020-20718?: File Upload vulnerability in PluckCMS v.4.7.10 dev versions allows a remote attacker to execute arbitrary code via a crafted image file to the the save_file() parameter.
How severe is CVE-2020-20718?: CVE-2020-20718 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-2020-20718 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-20718?: CVE-2020-20718 affects Pluck-cms Pluckcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-20718?: 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-2020-20718 published?: CVE-2020-20718 was published on 2023-06-20 and last updated on 2026-06-17.

References

https://github.com/pluck-cms/pluck/issues/79

Affected products (1)

cpe:2.3:a:pluck-cms:pluckcms:4.7.10:dev:*:*:*:*:*:*

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