EUVD-2026-66877
GHSA-h95h-4rcc-2h4r
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L
Network-delivered CSRF (AV:N), AC:H for required social engineering of authenticated admin; no attacker credentials (PR:N); full integrity impact from backup restore (I:H), minor availability loss (A:L), no confidentiality exposure.
Primary rating from Vendor (wpscan).
CVSS VectorVendor: wpscan
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L
Lifecycle Timeline
4DescriptionCVE.org
The UpdraftPlus: WP Backup & Migration Plugin WordPress plugin before 1.26.7 does not have CSRF checks in one of its backup management actions, which could allow attackers to make a logged in admin restore an existing backup, reverting the site's database and files to an earlier state, via a crafted link.
AnalysisAI
UpdraftPlus: WP Backup & Migration Plugin for WordPress (all versions before 1.26.7) exposes a backup restoration action without CSRF token validation, enabling a remote attacker to revert a site's entire database and files to a prior backup state by tricking a logged-in administrator into clicking a crafted link. The integrity impact is high - a successful exploit silently undoes content updates, security hardening, and user data accumulated since the backup was taken. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires all of the following: the target WordPress site must have UpdraftPlus installed at a version prior to 1.26.7; at least one valid backup must exist on the site that can be triggered for restoration; and a logged-in WordPress administrator must click or load a crafted URL or page controlled by the attacker (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L, score 5.9) captures the key constraints: high attack complexity because the attacker must successfully lure an authenticated administrator into triggering the CSRF payload, and required user interaction that limits automated mass exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker identifies a WordPress site running UpdraftPlus prior to 1.26.7 and confirms the existence of at least one stored backup. The attacker crafts a malicious HTML page or phishing email containing a forged HTTP request to the restore action and delivers it to the site administrator. … |
| Remediation | The primary fix is upgrading UpdraftPlus to version 1.26.7 or later, which introduces CSRF token validation on the affected backup management action. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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