How severe is CVE-2021-4301?

CVE-2021-4301 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-4301 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4301?

CVE-2021-4301 affects Phpwcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4301?

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

When was CVE-2021-4301 published?

CVE-2021-4301 was published on 2023-01-07 and last updated on 2026-06-17.

CVE-2021-4301

CVE-2021-4301 is a medium-severity vulnerability in Phpwcms with a CVSS 3.x base score of 6.3. 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: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Phpwcms
Published: 2023-01-07
Last modified: 2026-06-17

Description

A vulnerability was found in slackero phpwcms up to 1.9.26 and classified as critical. Affected by this issue is some unknown functionality. The manipulation of the argument $phpwcms['db_prepend'] leads to sql injection. The attack may be launched remotely. Upgrading to version 1.9.27 is able to address this issue. The patch is identified as 77dafb6a8cc1015f0777daeb5792f43beef77a9d. It is recommended to upgrade the affected component. VDB-217418 is the identifier assigned to this vulnerability.

Frequently asked questions

What is CVE-2021-4301?: A vulnerability was found in slackero phpwcms up to 1.9.26 and classified as critical. Affected by this issue is some unknown functionality. The manipulation of the argument $phpwcms['db_prepend'] leads to sql injection. The attack may be launched remotely. Upgrading to version 1.9.27 is able to address this issue. The patch is identified as 77dafb6a8cc1015f0777daeb5792f43beef77a9d. It is recommended to upgrade the affected component. VDB-217418 is the identifier assigned to this vulnerability.
How severe is CVE-2021-4301?: CVE-2021-4301 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-4301 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4301?: CVE-2021-4301 affects Phpwcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4301?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4301 published?: CVE-2021-4301 was published on 2023-01-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpwcms:phpwcms:*:*:*:*:*:*:*:*

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