How severe is CVE-2021-25121?

CVE-2021-25121 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 none, integrity none, and availability high.

Is CVE-2021-25121 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25121?

CVE-2021-25121 affects Bestwebsoft Rating. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25121?

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

When was CVE-2021-25121 published?

CVE-2021-25121 was published on 2022-06-20 and last updated on 2026-06-17.

CVE-2021-25121

CVE-2021-25121 is a medium-severity vulnerability in Bestwebsoft Rating 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-191.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-191
Affected product: Bestwebsoft Rating
Published: 2022-06-20
Last modified: 2026-06-17

Description

The Rating by BestWebSoft WordPress plugin before 1.6 does not validate the submitted rating, allowing submission of long integer, causing a Denial of Service on the post/page when a user submit such rating

Frequently asked questions

What is CVE-2021-25121?: The Rating by BestWebSoft WordPress plugin before 1.6 does not validate the submitted rating, allowing submission of long integer, causing a Denial of Service on the post/page when a user submit such rating
How severe is CVE-2021-25121?: CVE-2021-25121 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 none, integrity none, and availability high.
Is CVE-2021-25121 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25121?: CVE-2021-25121 affects Bestwebsoft Rating. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25121?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25121 published?: CVE-2021-25121 was published on 2022-06-20 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/efb1ddef-2123-416c-a932-856d41ed836d

Affected products (1)

cpe:2.3:a:bestwebsoft:rating:*:*:*:*:*:wordpress:*:*

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