How severe is CVE-2021-46255?

CVE-2021-46255 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2021-46255 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-2021-46255?

CVE-2021-46255 affects Eyoucms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-46255?

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-2021-46255 published?

CVE-2021-46255 was published on 2022-01-14 and last updated on 2026-06-17.

CVE-2021-46255

CVE-2021-46255 is a high-severity vulnerability in Eyoucms with a CVSS 3.x base score of 8.1. 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 8.1)
CVSS v2: 5.5
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Eyoucms
Published: 2022-01-14
Last modified: 2026-06-17

Description

eyouCMS V1.5.5-UTF8-SP3_1 suffers from Arbitrary file deletion due to insufficient filtering of the parameter filename.

Frequently asked questions

What is CVE-2021-46255?: eyouCMS V1.5.5-UTF8-SP3_1 suffers from Arbitrary file deletion due to insufficient filtering of the parameter filename.
How severe is CVE-2021-46255?: CVE-2021-46255 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2021-46255 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-2021-46255?: CVE-2021-46255 affects Eyoucms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-46255?: 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-2021-46255 published?: CVE-2021-46255 was published on 2022-01-14 and last updated on 2026-06-17.

References

https://github.com/eyoucms/eyoucms/issues/21

Affected products (1)

cpe:2.3:a:eyoucms:eyoucms:1.5.5-utf8-sp3_1:*:*:*:*:*:*:*

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