Security readout for executives and security teams
Plain-English summary
CVE-2026-3996 affects the WP Games Embed WordPress plugin through version 0.1beta. A logged-in user with Contributor-level access or higher could save content that runs script in visitors’ browsers. This is not marked as actively exploited in the provided sources, but it can affect site trust and user session safety.
Executive priority
Treat as a moderate-priority website risk. Prioritize sites where many users can contribute content or where logged-in administrators view contributor-created pages. Remediate during the next security maintenance cycle, faster for public or high-trust sites.
Technical view
The plugin’s [game] shortcode directly concatenates user-controlled attributes into HTML without sufficient sanitization or output escaping. Affected attributes include width, height, src, title, description, game_url, main, and thumb. The issue is CWE-79 stored cross-site scripting with CVSS 3.1 score 6.4, requiring low privileges and network access.
Likely exposure
Exposure is limited to WordPress sites running WP Games Embed up to and including 0.1beta, where untrusted or semi-trusted users can create posts or shortcodes. Sites without this plugin, without affected versions, or without Contributor-level users are less exposed.
Exploitation context
The provided sources do not indicate active exploitation, and the CVE is not listed as KEV. Abuse requires authenticated Contributor-level access or higher. Successful exploitation would execute stored browser-side script when a user views affected content.
Researcher notes
Evidence is based on the CVE record, Wordfence entry, and WordPress plugin source references. The sources identify unsafe shortcode attribute handling, but do not provide a named fixed version or active exploitation evidence. Avoid assuming broader WordPress impact beyond this plugin and affected versions.
Mitigation direction
- Inventory WordPress sites for WP Games Embed versions up to 0.1beta.
- Check vendor, WordPress plugin, and Wordfence guidance for a fixed release.
- If no fixed release is available, disable or remove the plugin.
- Restrict Contributor-level access to trusted users only.
- Review existing content using the [game] shortcode.
Validation and detection
- Confirm whether WP Games Embed is installed and active.
- Record the installed plugin version on each WordPress site.
- Review user roles with Contributor access or higher.
- Identify posts or pages containing the [game] shortcode.
- Verify remediation against vendor or WordPress plugin 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-79: 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-2026-3996 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
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/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:C/C:L/I:L/A:N3.12.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6a8cc968-01a5-45b8-bee8-86c858f86514?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/wp-games-embed/trunk/wp-games-embed.php#L41CVE reference
- https://plugins.trac.wordpress.org/browser/wp-games-embed/tags/0.1/wp-games-embed.php#L41CVE 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 Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.