Security readout for executives and security teams
Plain-English summary
CVE-2026-0554 lets logged-in WordPress users with Contributor-level access or higher reset NotificationX campaign analytics they do not own. This affects data integrity, not confidentiality or site takeover. Business urgency is moderate where marketing, conversion, or campaign reporting relies on NotificationX analytics.
Executive priority
Treat as a moderate-priority integrity issue. It is unlikely to cause full compromise by itself, but it can damage campaign reporting and trust in marketing metrics on affected WordPress sites.
Technical view
NotificationX for WordPress lacks proper capability checks on the “regenerate” and “reset” REST API endpoints through version 3.1.11. Authenticated Contributor+ users can reset analytics for any NotificationX campaign. CVSS is 4.3 with low attack complexity and low privileges required; impact is limited to integrity.
Likely exposure
Exposure is limited to WordPress sites running NotificationX up to and including 3.1.11, especially sites allowing Contributor, Author, Editor, or Administrator accounts for multiple users.
Exploitation context
The vulnerability requires authentication and Contributor-level access or higher. The provided sources do not indicate CISA KEV listing or confirmed active exploitation. Abuse would primarily disrupt campaign analytics and reporting accuracy.
Researcher notes
Evidence supports CWE-862 missing authorization on two REST endpoints. Scope appears authenticated and Contributor+. The bundle does not provide exploit-in-the-wild evidence. The WordPress Trac changeset should be reviewed to confirm the exact fixed release and code-level remediation.
Mitigation direction
- Check the installed NotificationX version on all WordPress sites.
- Update NotificationX according to vendor or WordPress plugin repository guidance.
- Limit Contributor-level access to trusted users only.
- Review and remove unused WordPress accounts with content privileges.
- Monitor NotificationX analytics for unexpected resets or gaps.
Validation and detection
- Inventory WordPress sites using the NotificationX plugin.
- Confirm whether installed versions are 3.1.11 or earlier.
- Review user accounts with Contributor-level access or higher.
- Check change logs or vendor notes for the authorization fix.
- Review campaign analytics history for unexplained reset 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-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-2026-0554 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:L/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:L/UI:N/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:L/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e3cd843b-ab38-45c4-a661-78d4e6db5201?source=cveCVE reference
- https://research.cleantalk.org/cve-2026-0554CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3433555%40notificationx&old=3426659%40notificationx&sfp_email=&sfph_mail=CVE 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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.