CVE-2026-86827
BackWPup 3.3 - 5.7.6 - Unauthenticated Backup Job Execution via wp-cron.php
Unknown BackWPup
CVSS
5.3MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.22%Chance of exploitation activity in the next 30 days, higher than 11% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 5.7.7BackWPupCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
The BackWPup WordPress plugin before 5.7.7 does not verify that a request to its cron-triggered backup execution handler actually originates from WordPress's internal scheduled-event dispatch, allowing unauthenticated attackers to force any existing backup job to run immediately, independent of its configured trigger type or schedule.
Text from CVE List
Affected versions 1
- BackWPupaffected: 3.3 before 5.7.7CVE List