How severe is CVE-2020-21654?

CVE-2020-21654 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-21654 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-21654?

CVE-2020-21654 affects Emlog. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-21654?

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

When was CVE-2020-21654 published?

CVE-2020-21654 was published on 2021-10-06 and last updated on 2026-06-17.

CVE-2020-21654

CVE-2020-21654 is a high-severity vulnerability in Emlog with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Emlog
Published: 2021-10-06
Last modified: 2026-06-17

Description

emlog v6.0 contains a vulnerability in the component admin\template.php, which allows attackers to getshell via a crafted Zip file.

Frequently asked questions

What is CVE-2020-21654?: emlog v6.0 contains a vulnerability in the component admin\template.php, which allows attackers to getshell via a crafted Zip file.
How severe is CVE-2020-21654?: CVE-2020-21654 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-21654 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-21654?: CVE-2020-21654 affects Emlog. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-21654?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-21654 published?: CVE-2020-21654 was published on 2021-10-06 and last updated on 2026-06-17.

References

https://github.com/emlog/emlog/issues/55

Affected products (1)

cpe:2.3:a:emlog:emlog:6.0.0:-:*:*:*:*:*:*

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