Security readout for executives and security teams
Plain-English summary
CVE-2026-27042 affects the WordPress NotificationX plugin through version 3.2.1. It is a missing authorization issue, meaning unauthenticated users may be able to perform actions they should not. The published impact is limited to low integrity impact, not data theft or outage, but public WordPress exposure makes prompt review appropriate.
Executive priority
Treat this as a near-term WordPress hygiene item, not a crisis based on current evidence. Prioritize internet-facing business sites using NotificationX, especially where unauthorized content or configuration changes could affect trust, marketing, or conversions.
Technical view
The CVE describes CWE-862 Missing Authorization in WPDeveloper NotificationX through 3.2.1. CVSS 3.1 is 5.3: network reachable, low complexity, no privileges, no user interaction, unchanged scope, no confidentiality or availability impact, and low integrity impact. Public details do not specify the vulnerable endpoint, action, fixed version, or workaround.
Likely exposure
Exposure is most likely on WordPress sites with the NotificationX plugin installed at version 3.2.1 or earlier. Internet-facing WordPress sites are the primary concern because the CVSS vector indicates remote unauthenticated reachability.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector indicates exploitation does not require authentication or user interaction, but the available public details do not include exploit mechanics or observed attacks.
Researcher notes
Public information is sparse. The CVE and Patchstack entry identify missing authorization in NotificationX through 3.2.1, with low integrity impact. No endpoint, capability boundary, patch version, workaround, or exploitation evidence is included in the provided sources, so validation should focus on asset/version exposure and vendor advisory tracking.
Mitigation direction
- Inventory WordPress sites for the NotificationX plugin and installed version.
- Prioritize sites running NotificationX 3.2.1 or earlier for review.
- Check WPDeveloper, WordPress.org, or Patchstack guidance for an updated safe version.
- Apply vendor-supported updates or mitigations when available.
- Restrict plugin administrative functionality to trusted users and monitor for unexpected changes.
Validation and detection
- Confirm whether NotificationX is installed on each WordPress site.
- Record the installed plugin version and compare it to 3.2.1.
- Review vendor and Patchstack advisories for fix status and affected-version details.
- Check site logs for unexpected unauthenticated requests to NotificationX-related functionality.
- After remediation, verify the plugin version matches vendor guidance.
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-862: 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 lookupCVE-2026-27042 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:N/S:U/C:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.