WordPress through 6.1.1 depends on unpredictable client visits to cause wp-cron.php execution and the resulting security updates, and the source code describes "the scenario where a site may not receive enough visits to execute scheduled tasks in a timely manner," but neither the installation guide nor the security guide mentions this default behavior, or alerts the user about security risks on installations with very few visits.
Conclusion & alert: CVE-2023-22622 is rated Moderate Risk (52.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 8.42%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-17 | 9.68% | 8.42% | -1.26% |
| 2 | 2026-03-04 | 3.02% | 9.68% | +6.67% |
| 3 | 2026-03-01 | — | 3.02% | — |
Full EPSS history (50 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
1.6 | 3.6 | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
1.6 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2023-22622 unimportant priority: Debian including 1 source packages (wordpress), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-22622 |
ubuntu
|
medium | CVE-2023-22622 medium priority: Ubuntu including 1 source packages (wordpress), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 7, ignored 6. | https://ubuntu.com/security/CVE-2023-22622 |
| URL | Tags |
|---|---|
| https://developer.wordpress.org/plugins/cron/ | Product Vendor Advisory |
| https://github.com/WordPress/WordPress/blob/dca7b5204b5fea54e6d1774689777b359a9222ab/wp-cron.php#L5-L8 | Third Party Advisory |
| https://medium.com/%40thecpanelguy/the-nightmare-that-is-wpcron-php-ae31c1d3ae30 | |
| https://patchstack.com/articles/solving-unpredictable-wp-cron-problems-addressing-cve-2023-22622/ | Third Party Advisory |
| https://wordpress.org/about/security/ | Vendor Advisory |
| https://wordpress.org/support/article/how-to-install-wordpress/ | Vendor Advisory |
| https://www.tenable.com/plugins/was/113449 | Third Party Advisory |