How severe is CVE-2021-42644?

CVE-2021-42644 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-42644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-42644?

CVE-2021-42644 affects Cmseasy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-42644?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-42644 published?

CVE-2021-42644 was published on 2022-05-17 and last updated on 2026-06-17.

CVE-2021-42644

CVE-2021-42644 is a medium-severity vulnerability in Cmseasy with a CVSS 3.x base score of 6.5. 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-552.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-552
Affected product: Cmseasy
Published: 2022-05-17
Last modified: 2026-06-17

Description

cmseasy V7.7.5_20211012 is affected by an arbitrary file read vulnerability. After login, the configuration file information of the website such as the database configuration file (config / config_database) can be read through this vulnerability.

Frequently asked questions

What is CVE-2021-42644?: cmseasy V7.7.5_20211012 is affected by an arbitrary file read vulnerability. After login, the configuration file information of the website such as the database configuration file (config / config_database) can be read through this vulnerability.
How severe is CVE-2021-42644?: CVE-2021-42644 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-42644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42644?: CVE-2021-42644 affects Cmseasy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-42644?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-42644 published?: CVE-2021-42644 was published on 2022-05-17 and last updated on 2026-06-17.

References

https://jdr2021.github.io/2021/10/14/CmsEasy_7.7.5_20211012%E5%AD%98%E5%9C%A8%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E5%86%99%E5%85%A5%E5%92%8C%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E/

Affected products (1)

cpe:2.3:a:cmseasy:cmseasy:7.7.5_20211012:*:*:*:*:*:*:*

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