Security readout for executives and security teams
Plain-English summary
CVE-2026-1398 affects the WordPress plugin Change WP URL through version 1.0. A malicious site or link could trick an administrator’s browser into changing the WordPress login URL. This requires administrator interaction, but could disrupt administrator access or create operational confusion.
Executive priority
Treat as a moderate-priority WordPress hygiene issue. It is not reported as actively exploited in the provided sources, but affected sites could have administrator access workflows disrupted. Prioritize validation where this plugin protects or changes login paths on business-critical sites.
Technical view
The issue is cross-site request forgery on the plugin’s change-wp-url settings page due to missing or incorrect nonce validation. The CVSS 3.1 score is 4.3, with network access, low complexity, no attacker privileges, and required user interaction. Impact is limited to integrity.
Likely exposure
Exposure is limited to WordPress sites with the Change WP URL plugin installed at version 1.0 or earlier. Sites without the plugin are not affected. The provided affected-version metadata is inconsistent, so confirm against plugin inventory and vendor or Wordfence records.
Exploitation context
The source describes unauthenticated attackers changing the WP Login URL only if they can trick a site administrator into taking an action such as clicking a link. CISA KEV is false in the provided data, and no cited source states active exploitation.
Researcher notes
The main evidence is Wordfence’s advisory and WordPress plugin Trac references around the plugin file and settings handling. The CVE description clearly identifies CWE-352 and missing nonce validation. Public data does not name a fixed version or patch, and affected-version metadata contains inconsistency.
Mitigation direction
- Inventory WordPress sites for the Change WP URL plugin and version.
- If installed and unnecessary, disable or remove the plugin.
- Check Wordfence, CVE, and WordPress plugin sources for vendor remediation guidance.
- Warn administrators not to follow unexpected links while authenticated to WordPress.
- Limit WordPress administrator accounts to users with operational need.
Validation and detection
- Confirm whether Change WP URL is installed on each WordPress site.
- Record the installed plugin version and compare with affected versions through 1.0.
- Review plugin source or vendor guidance for nonce validation on the settings page.
- Check recent WordPress settings changes for unexpected login URL modifications.
- Monitor administrator reports of changed or inaccessible login paths.
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 lookupCVE-2026-1398 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
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f5dead05-5960-4ccb-89c2-c8bb0cd9c9e9?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/change-wp-url/trunk/change-wp-url.php#L18CVE reference
- https://plugins.trac.wordpress.org/browser/change-wp-url/tags/1.0/change-wp-url.php#L18CVE reference
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.