How severe is CVE-2020-20289?

CVE-2020-20289 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-2020-20289 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-20289?

CVE-2020-20289 affects Yccms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-20289?

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-2020-20289 published?

CVE-2020-20289 was published on 2021-02-01 and last updated on 2026-06-17.

CVE-2020-20289

CVE-2020-20289 is a critical-severity vulnerability in Yccms 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Yccms
Published: 2021-02-01
Last modified: 2026-06-17

Description

Sql injection vulnerability in the yccms 3.3 project. The no_top function's improper judgment of the request parameters, triggers a sql injection vulnerability.

Frequently asked questions

What is CVE-2020-20289?: Sql injection vulnerability in the yccms 3.3 project. The no_top function's improper judgment of the request parameters, triggers a sql injection vulnerability.
How severe is CVE-2020-20289?: CVE-2020-20289 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-2020-20289 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-20289?: CVE-2020-20289 affects Yccms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-20289?: 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-2020-20289 published?: CVE-2020-20289 was published on 2021-02-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:yccms:yccms:3.3:*:*:*:*:*:*:*

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