Paper/Archive/CVE-2026-101148

CVE-2026-101148

Unknown BackupSheep WordPress Backup Plugin — BackupSheep <= 1.8 - Unauthenticated Arbitrary File Deletion and Backup Exfiltration via Empty Integration Key

EPSS 0.3%CVSS 10.0

critical.is priorityof 100

CVSS 10.0 (ADP)10.0 / 10 × 3030.0 Not in CISA KEV+300.0 EPSS percentile 23.6.236 × 204.7 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

The BackupSheep WordPress Backup Plugin WordPress plugin through 1.8 does not properly validate its integration key, treating an unset or blank key as valid, which allows unauthenticated attackers to create and download full site backups, including the database with user password hashes, and to delete arbitrary files on the server, leading to sensitive data disclosure and site takeover. The BackupSheep WordPress Backup Plugin WordPress plugin through 1.8 has been closed on WordPress.org since July 2024 and no fixed version is available. Remove it from any site where it is installed.

Affected

ProductAffectedFixed inSource

BackupSheep WordPress Backup Plugin≤ 1.8–CNA

Scores by source

CISA ADP10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

exploitwpscan.com/vulnerability/5d6fce13-34e3-4ec6-9b47-a78dd7c94fed