PatchTheCVECVE-2021-24481: The Any Hostname WordPress plugin through 1.0.6 does not sanitise or escape its "Allowed hosts" setting, leadi
CVE-2021-24481 is a medium-severity flaw (CVSS 4.8) affecting any hostname. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.8 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | Required |
| EPSS exploit chance | 0.6% (top 51%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2021-08-02 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-24481?
any hostname: upgrade to newer than 1.0.6. Exact commands for each OS are on this page.
Is CVE-2021-24481 being exploited?
CVE-2021-24481 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-24481 affect?
CVE-2021-24481 affects any hostname. Severity is medium (CVSS 4.8). 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 urgent is CVE-2021-24481?
Priority 34/100. Public exploit reference