How severe is CVE-2021-25025?

CVE-2021-25025 has a CVSS 3.x base score of 4.3, 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 low, and availability none.

Is CVE-2021-25025 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25025?

CVE-2021-25025 affects Theeventscalendar Eventcalendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25025?

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

When was CVE-2021-25025 published?

CVE-2021-25025 was published on 2022-01-17 and last updated on 2026-06-17.

CVE-2021-25025

CVE-2021-25025 is a medium-severity vulnerability in Theeventscalendar Eventcalendar with a CVSS 3.x base score of 4.3. 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Theeventscalendar Eventcalendar
Published: 2022-01-17
Last modified: 2026-06-17

Description

The EventCalendar WordPress plugin before 1.1.51 does not have proper authorisation and CSRF checks in the add_calendar_event AJAX actions, allowing users with a role as low as subscriber to create events

Frequently asked questions

What is CVE-2021-25025?: The EventCalendar WordPress plugin before 1.1.51 does not have proper authorisation and CSRF checks in the add_calendar_event AJAX actions, allowing users with a role as low as subscriber to create events
How severe is CVE-2021-25025?: CVE-2021-25025 has a CVSS 3.x base score of 4.3, 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 low, and availability none.
Is CVE-2021-25025 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25025?: CVE-2021-25025 affects Theeventscalendar Eventcalendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25025?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25025 published?: CVE-2021-25025 was published on 2022-01-17 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/24fb4eb4-9fe1-4433-8844-8904eaf13c0e

Affected products (1)

cpe:2.3:a:theeventscalendar:eventcalendar:*:*:*:*:*:wordpress:*:*

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