PatchTheCVECVE-2021-24631: The Unlimited PopUps WordPress plugin through 4.5.3 does not sanitise or escape the did GET parameter before u
CVE-2021-24631 is a high-severity flaw (CVSS 8.8) affecting unlimited popups. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Unlimited PopUps WordPress plugin through 4.5.3 does not sanitise or escape the did GET parameter before using it in a SQL statement, available to users as low as editor, leading to an authenticated SQL Injection
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 1.6% (top 25%) |
| CISA exploited list | No |
| Weakness | CWE-89 |
| Published | 2021-11-08 |
| 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-2021-24631?
unlimited popups: upgrade to newer than 4.5.3. Exact commands for each OS are on this page.
Is CVE-2021-24631 being exploited?
CVE-2021-24631 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-2021-24631 affect?
CVE-2021-24631 affects unlimited popups. Severity is high (CVSS 8.8). The Unlimited PopUps WordPress plugin through 4.5.3 does not sanitise or escape the did GET parameter before using it in a SQL statement, available to users as low as editor, leading to an authenticated SQL Injection
How urgent is CVE-2021-24631?
Priority 55/100. High severity; Public exploit reference