Security readout for executives and security teams
Plain-English summary
CVE-2026-0844 affects the Simple User Registration WordPress plugin through version 6.7. A logged-in low-privilege user, such as a subscriber, may be able to change their own role to gain higher privileges. For affected public WordPress sites, this can lead to full site compromise if attacker registration or subscriber accounts are available.
Executive priority
Treat as urgent for internet-facing WordPress sites that allow user registration. A subscriber-level account may be enough to escalate privileges, which can threaten site integrity, data, and availability. Prioritize inventory, update decisions, and account review ahead of routine plugin maintenance.
Technical view
The issue is insufficient access restriction in the plugin’s profile_save_field handling. Sources state an authenticated Subscriber+ attacker can submit the wp_capabilities parameter during profile update to modify their WordPress role. It is classified as CWE-284 with CVSS 8.8. References include Wordfence and WordPress plugin Trac code for 6.7 and 6.8.
Likely exposure
Exposure is likely for WordPress sites running Simple User Registration versions up to and including 6.7, especially where untrusted users can create or hold subscriber accounts. Sites without the plugin, or not using affected versions, are not indicated as exposed by the provided sources.
Exploitation context
The vulnerability requires authentication but only minimal privileges. No user interaction is required after login. The provided bundle does not show CISA KEV listing or cite active exploitation, so active exploitation should not be assumed from these sources alone.
Researcher notes
Evidence supports an authenticated privilege-escalation flaw tied to profile_save_field and wp_capabilities handling. The affected range is stated as up to 6.7, with a 6.8 Trac reference present, but the bundle does not provide a clear vendor advisory or changelog statement confirming the exact fixed version.
Mitigation direction
- Inventory WordPress sites for the Simple User Registration plugin and installed version.
- If running version 6.7 or earlier, check vendor or Wordfence guidance for the fixed release.
- Update to a vendor-approved version newer than the affected range when available.
- If immediate update is unavailable, consider disabling the plugin where business impact allows.
- Restrict or review untrusted subscriber account creation until remediation is complete.
Validation and detection
- Confirm whether each site has Simple User Registration installed.
- Verify plugin version is not 6.7 or earlier.
- Review user accounts for unexpected administrator or elevated roles.
- Check recent profile changes for suspicious role modifications.
- Validate that subscriber users cannot alter role or capability fields through profile updates.
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-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-0844 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:L/UI:N/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:L/UI:N/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:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bb0e77e1-7e9f-4f7e-8953-c86ab0e5ae7a?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/wp-registration/tags/6.7/inc/classes/class.profile.php#L401CVE reference
- https://plugins.trac.wordpress.org/browser/wp-registration/tags/6.7/inc/classes/class.user.php#L305CVE reference
- https://plugins.trac.wordpress.org/browser/wp-registration/tags/6.8/inc/classes/class.profile.php#L401CVE 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.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.