Security readout for executives and security teams
Plain-English summary
A vulnerable WordPress backup plugin could let an attacker abuse an administrator’s browser to upload files to the site. This requires tricking an admin into taking an action, but the potential impact is severe because arbitrary uploads can affect confidentiality, integrity, and availability.
Executive priority
Treat this as a high-priority WordPress plugin exposure. It is not confirmed as actively exploited here, but arbitrary file upload on public sites can create major incident risk if administrators are targeted.
Technical view
JetBackup – WP Backup, Migrate & Restore through version 1.3.9 lacks nonce validation in backup_guard_get_import_backup(). The issue is CWE-352 CSRF and is scored CVSS 8.8. A forged request can cause arbitrary file upload if a site administrator is induced to act.
Likely exposure
Exposure is limited to WordPress sites running the JetBackup – Backup, Restore & Migrate plugin at versions up to and including 1.3.9. The structured affected metadata in the bundle appears incomplete, so validate directly against installed plugin versions.
Exploitation context
The bundle does not identify CISA KEV listing or active exploitation. Exploitation requires user interaction by a site administrator, but no authentication by the attacker is required according to the CVE description.
Researcher notes
Primary weakness is missing CSRF nonce validation in backup_guard_get_import_backup(). The key uncertainty is affected-version metadata: narrative sources state through 1.3.9, while the structured affected object is not useful. Base validation on real plugin inventory and referenced advisory data.
Mitigation direction
- Upgrade the plugin beyond version 1.3.9 or to the latest available release.
- Disable or remove the plugin where immediate upgrade is not possible.
- Check Wordfence and WordPress plugin guidance for current remediation details.
- Review administrative upload and backup-import activity for suspicious files.
Validation and detection
- Inventory WordPress sites for the JetBackup plugin and installed versions.
- Confirm whether any installation is version 1.3.9 or earlier.
- Review plugin code or changelog for nonce validation around backup import handling.
- Check web and WordPress logs for unusual admin-triggered import or upload events.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-352: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-36669 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9ae8de00-ba4c-48d2-a566-13dac0bc4312?source=cveCVE reference
- https://plugins.trac.wordpress.org/changeset/2341420CVE reference
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9ae8de00-ba4c-48d2-a566-13dac0bc4312CVE reference · x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.