Security readout for executives and security teams
Plain-English summary
CVE-2026-1608 affects the WordPress Video Onclick plugin up to version 0.4.7. A logged-in user with Contributor privileges or higher can place malicious script in content through the plugin’s youtube shortcode. That script can run when others view the affected page, creating account and content integrity risk.
Executive priority
Treat as a moderate-priority WordPress content security issue. Prioritize sites with many contributors, external authors, or weak account controls. The main business risk is malicious script running for visitors or administrators after content publication.
Technical view
This is stored cross-site scripting in Video Onclick’s youtube shortcode caused by insufficient sanitization and output escaping of shortcode attributes. The CVSS 3.1 score is 6.4, with low privileges required and scope changed. The public record identifies CWE-79 and versions up to and including 0.4.7 as vulnerable.
Likely exposure
Exposure is mainly WordPress sites running Video Onclick version 0.4.7 or earlier, especially where Contributor, Author, Editor, or Administrator access is broadly assigned or compromised.
Exploitation context
Sources describe authenticated stored XSS requiring Contributor-level access or higher. The CVE is not listed as KEV, and the provided sources do not state active exploitation in the wild.
Researcher notes
The vulnerable surface is the plugin shortcode handler around the youtube shortcode. Public evidence points to inadequate input sanitization and output escaping. No public source in the bundle names a fixed version, patch commit, or confirmed exploitation, so remediation should track vendor guidance.
Mitigation direction
- Inventory WordPress sites for the Video Onclick plugin and version.
- Check vendor, WordPress plugin, and Wordfence guidance for a fixed release or advisory.
- Limit Contributor and higher roles to trusted users only.
- Review recent content containing the plugin’s youtube shortcode.
- Disable or remove the plugin where it is unnecessary or risk is unacceptable.
Validation and detection
- Confirm whether Video Onclick is installed on each WordPress site.
- Check whether installed versions are 0.4.7 or earlier.
- Review posts and pages using the youtube shortcode for suspicious attributes.
- Audit users with Contributor-level access or higher.
- Monitor for unexpected script execution when viewing affected content.
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-2026-1608 mapping review
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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
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.