How severe is CVE-2021-24481?

CVE-2021-24481 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-24481 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24481?

CVE-2021-24481 affects Any Hostname Project Any Hostname. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24481?

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

When was CVE-2021-24481 published?

CVE-2021-24481 was published on 2021-08-02 and last updated on 2026-06-17.

CVE-2021-24481

CVE-2021-24481 is a medium-severity vulnerability in Any Hostname Project Any Hostname with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Any Hostname Project Any Hostname
Published: 2021-08-02
Last modified: 2026-06-17

Description

The Any Hostname WordPress plugin through 1.0.6 does not sanitise or escape its "Allowed hosts" setting, leading to an authenticated stored XSS issue as high privilege users are able to set XSS payloads in it

Frequently asked questions

What is CVE-2021-24481?: The Any Hostname WordPress plugin through 1.0.6 does not sanitise or escape its "Allowed hosts" setting, leading to an authenticated stored XSS issue as high privilege users are able to set XSS payloads in it
How severe is CVE-2021-24481?: CVE-2021-24481 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-24481 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24481?: CVE-2021-24481 affects Any Hostname Project Any Hostname. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24481?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24481 published?: CVE-2021-24481 was published on 2021-08-02 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/a4c352de-9815-4dfe-ac51-65b5bfb37438

Affected products (1)

cpe:2.3:a:any_hostname_project:any_hostname:*:*:*:*:*:wordpress:*:*

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