How severe is CVE-2021-24978?

CVE-2021-24978 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-24978 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24978?

CVE-2021-24978 affects B4after Osmapper. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24978?

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

When was CVE-2021-24978 published?

CVE-2021-24978 was published on 2022-03-28 and last updated on 2026-06-17.

CVE-2021-24978

CVE-2021-24978 is a medium-severity vulnerability in B4after Osmapper with a CVSS 3.x base score of 5.3. 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 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: B4after Osmapper
Published: 2022-03-28
Last modified: 2026-06-17

Description

The OSMapper WordPress plugin through 2.1.5 contains an AJAX action to delete a plugin related post type named 'map' and is registered with the wp_ajax_nopriv prefix, making it available to unauthenticated users. There is no authorisation, CSRF and checks in place to ensure that the post to delete is a map one. As a result, unauthenticated user can delete arbitrary posts from the blog

Frequently asked questions

What is CVE-2021-24978?: The OSMapper WordPress plugin through 2.1.5 contains an AJAX action to delete a plugin related post type named 'map' and is registered with the wp_ajax_nopriv prefix, making it available to unauthenticated users. There is no authorisation, CSRF and checks in place to ensure that the post to delete is a map one. As a result, unauthenticated user can delete arbitrary posts from the blog
How severe is CVE-2021-24978?: CVE-2021-24978 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-24978 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24978?: CVE-2021-24978 affects B4after Osmapper. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24978?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24978 published?: CVE-2021-24978 was published on 2022-03-28 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/f0f2af29-e21e-4d16-9424-1a49bff7fb86

Affected products (1)

cpe:2.3:a:b4after:osmapper:*:*:*:*:*:wordpress:*:*

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