Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
WP Crontrol, the johnbillion/wp-crontrol package on Packagist, is affected in versions before 1.16.2. The feature that stores and runs PHP code in WP-Cron events has no known vulnerability on its own, but it could allow remote code execution if an attacker chains it with a separate flaw, such as a SQL injection or the ability to alter the wp_options table. Upgrade to version 1.16.2, which adds an HMAC integrity check on stored PHP cron events; events saved before the update stop running until an administrator re-saves them.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.2 | High | 3.1 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0017, the 5th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:03 UTC First seen by agentprime
- 31 Oct 2026, 14:03 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-9xvf-cjvf-ff5q
- OSV: GHSA-9xvf-cjvf-ff5q
- github.com/johnbillion/wp-crontrol/security/advisories/GHSA-9xvf-cjvf-ff5q
- github.com/johnbillion/wp-crontrol/commit/6d1fadcf6dfdd54e55feef27f916b0cfcd602405
- github.com/johnbillion/wp-crontrol
- github.com/johnbillion/wp-crontrol/releases/tag/1.16.2
- snicco.io/vulnerability-disclosure
- wp-crontrol.com/docs/php-cron-events
- wp-crontrol.com/help/check-php-cron-events