Security readout for executives and security teams
Plain-English summary
CVE-2026-0633 affects the MetForm WordPress plugin for Elementor up to version 4.1.0. An unauthenticated visitor may be able to view recently submitted form data because access relies on a forgeable cookie value. The exposure window is limited by a transient lifetime, reportedly 15 minutes by default, and severity is low.
Executive priority
Treat as a focused privacy exposure, not an emergency infrastructure compromise. Prioritize sites collecting sensitive form data and update during the next maintenance window or sooner for high-risk forms.
Technical view
MetForm uses a cookie value derived from entry ID and current user ID without a server-side secret. That design can allow unauthenticated access to form submission entry data rendered through MetForm shortcodes for entries still within the transient TTL. CVSS is 3.7, network exploitable, high complexity, no privileges or user interaction required, confidentiality impact low.
Likely exposure
WordPress sites using MetForm for Elementor versions up to and including 4.1.0 are potentially exposed, especially where forms collect sensitive user-submitted data. Exposure appears time-limited to recently created entries within the transient TTL.
Exploitation context
The source bundle does not indicate active exploitation, and CISA KEV status is false. Exploitation requires guessing or deriving valid recent entry context and cookie material, reflected in high attack complexity. Impact is limited to confidentiality of form submission data, not code execution or site takeover.
Researcher notes
Evidence supports a design flaw in cookie-based authorization for recent entries. Public sources provided do not include exploit code or confirmed exploitation. The WordPress Trac changeset is relevant remediation evidence, but the bundle does not state a named fixed release beyond affected versions through 4.1.0.
Mitigation direction
- Inventory WordPress sites using the MetForm plugin.
- Check installed MetForm versions; prioritize versions up to 4.1.0.
- Apply the vendor or WordPress.org plugin update containing changeset 3438419 or later guidance.
- Review forms that collect personal, financial, health, or confidential business information.
- Reduce retained exposure by following vendor guidance on transient/session handling if provided.
Validation and detection
- Confirm MetForm is installed and active on each WordPress site.
- Record the installed plugin version from WordPress admin or asset inventory.
- Identify pages using MetForm shortcodes for submission display or confirmation flows.
- Review web logs for unusual unauthenticated access to form-entry related pages.
- After updating, verify plugin version and retest normal form submission workflows.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-0633 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
- Low
- CVSS
- 3.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/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:H/PR:N/UI:N/S:U/C:L/I:N/A:N2.21.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.7LowVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.