Security readout for executives and security teams
Plain-English summary
This is a stored cross-site scripting issue in the Sitewide Notice WP WordPress plugin. A trusted, high-privilege user could save unsafe content in plugin settings, causing script execution on frontend pages. Business risk depends on whether the plugin is installed and who has administrative access.
Executive priority
Treat this as a targeted WordPress hygiene issue, not an emergency unless many sites use the plugin or admin accounts are weakly controlled. Prioritize patching and privilege review.
Technical view
Sitewide Notice WP before version 2.3 fails to sanitize some settings before rendering them on frontend pages. The issue is CWE-79 stored XSS and can affect sites even when WordPress unfiltered_html is disabled. The provided sources do not include CVSS scoring.
Likely exposure
Exposure is limited to WordPress sites using Sitewide Notice WP before 2.3. The attacker must be an authenticated high-privilege user with access to relevant plugin settings.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Public details identify the vulnerability class and access requirement, but not real-world exploitation.
Researcher notes
Evidence is sparse: the record identifies authenticated stored XSS, high-privilege access, affected versions before 2.3, and CWE-79. No CVSS vector, exploit status, or detailed patch notes are included in the provided bundle.
Mitigation direction
- Upgrade Sitewide Notice WP to version 2.3 or later where available.
- Check vendor or WPScan guidance for any additional remediation notes.
- Restrict high-privilege WordPress accounts to trusted administrators only.
- Audit plugin settings for unexpected HTML or script-like content.
Validation and detection
- Inventory WordPress sites for the Sitewide Notice WP plugin.
- Confirm installed plugin versions are not earlier than 2.3.
- Review administrator and high-privilege account assignments.
- Verify frontend notice output no longer renders unsafe saved 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-2021-24592 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://wpscan.com/vulnerability/9579ff13-9597-4a77-8cb9-997e35265d22CVE reference · x_refsource_MISC
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.