Security readout for executives and security teams
Plain-English summary
CVE-2026-1191 affects the JavaScript Notifier WordPress plugin through version 1.2.8. An administrator-level user could save malicious script in plugin settings, causing it to run for site visitors. Business urgency is limited by the need for administrator access, but compromised admin accounts or insider misuse could turn this into visitor-facing script execution.
Executive priority
Handle during normal vulnerability remediation, but prioritize sites with many administrators, weak admin controls, or sensitive visitor trust requirements. This is not currently supported as an active exploitation emergency by the provided evidence.
Technical view
The issue is stored cross-site scripting in plugin settings, tied to insufficient input sanitization and output escaping in the wp_footer action. CVSS is 4.4, with network access, high attack complexity, high privileges required, changed scope, and low confidentiality and integrity impact. CWE-79 applies.
Likely exposure
Exposure is limited to WordPress sites running JavaScript Notifier versions up to and including 1.2.8. Sites without this plugin, or not using affected versions, are not indicated as exposed by the provided sources.
Exploitation context
No provided source or KEV listing indicates active exploitation. The attacker must already have administrator-level WordPress access, so the main risk is from compromised admin accounts, malicious administrators, or chained attacks that first obtain admin privileges.
Researcher notes
The CVE description and Wordfence reference identify affected versions through 1.2.8. The source bundle also contains an affected-entry inconsistency showing version “0” and default unaffected; treat the narrative vulnerability description and references as the clearer exposure basis.
Mitigation direction
- Identify whether JavaScript Notifier is installed and record its version.
- Upgrade to a vendor-published fixed version when available through WordPress plugin channels.
- Review the referenced WordPress changeset for sanitization and escaping changes.
- Restrict and audit administrator accounts on affected WordPress sites.
- If no fixed release is available, consider disabling the plugin pending vendor guidance.
Validation and detection
- Check WordPress plugin inventory for JavaScript Notifier versions up to 1.2.8.
- Review plugin settings for unexpected script-like content.
- Confirm updated code includes sanitization and escaping changes from the referenced changeset.
- Audit recent administrator activity for plugin setting changes.
- Verify no public pages render unexpected scripts from the plugin footer output.
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-2026-1191 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
- 4.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:H/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:H/PR:H/UI:N/S:C/C:L/I:L/A:N1.32.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.4MediumVector: CVSS:3.1/AV:N/AC:H/PR:H/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/97696702-4d40-41dd-a25f-f2ee7681a2c9?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/javascript-notifier/trunk/javascript-notifier.php#L75CVE reference
- https://plugins.trac.wordpress.org/browser/javascript-notifier/tags/1.2.8/javascript-notifier.php#L75CVE reference
- https://plugins.trac.wordpress.org/changeset/3449861/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.
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.