PatchTheCVECVE-2021-24653: The Cookie Bar WordPress plugin before 1.8.9 doesn't properly sanitise the Cookie Bar Message setting, which c
CVE-2021-24653 is a medium-severity flaw (CVSS 4.8) affecting cookie-bar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Cookie Bar WordPress plugin before 1.8.9 doesn't properly sanitise the Cookie Bar Message setting, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
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 50%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2021-10-25 |
| 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-2021-24653?
cookie-bar: upgrade to 1.8.9. Exact commands for each OS are on this page.
Is CVE-2021-24653 being exploited?
CVE-2021-24653 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-2021-24653 affect?
CVE-2021-24653 affects cookie-bar. Severity is medium (CVSS 4.8). The Cookie Bar WordPress plugin before 1.8.9 doesn't properly sanitise the Cookie Bar Message setting, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
How urgent is CVE-2021-24653?
Priority 34/100. Public exploit reference