Security readout for executives and security teams
Plain-English summary
CVE-2026-24576 is a stored cross-site scripting issue in the WordPress UX Flat plugin through version 5.4.0. An authorized user could save unsafe content that later runs in another user's browser when viewed. This can affect site integrity, user trust, and potentially expose limited data in the browser session.
Executive priority
Treat this as a near-term WordPress hygiene issue, not an emergency based on current evidence. Prioritize public sites, sites with multiple content contributors, and sites handling sensitive users. Remediate once vendor guidance or an updated plugin version is confirmed.
Technical view
The CVE describes CWE-79 improper neutralization during web page generation in COP UX Flat. CVSS 3.1 is 6.5 with network attack vector, low complexity, low privileges required, user interaction required, and changed scope. The vulnerability is stored XSS affecting UX Flat versions up to and including 5.4.0.
Likely exposure
Exposure is limited to WordPress sites running the UX Flat plugin at version 5.4.0 or earlier. The attacker needs some level of authenticated access, and a victim must view the affected content. Public source data does not identify specific roles, settings, or endpoints required.
Exploitation context
The source bundle does not report active exploitation, and the CVE is not listed as KEV. Practical risk is higher on sites with many contributors or weak account controls because the CVSS vector indicates low privileges are sufficient and stored content can affect later viewers.
Researcher notes
Evidence is sparse. The public CVE identifies stored XSS in UX Flat through 5.4.0, but the provided data does not include a fixed version, affected endpoint, required role, proof of exploitation, or vendor advisory detail. Avoid assuming exploitation or remediation specifics beyond cited sources.
Mitigation direction
- Inventory WordPress sites for the UX Flat plugin and record installed versions.
- Prioritize sites running UX Flat version 5.4.0 or earlier.
- Check COP, WordPress plugin, and Patchstack guidance for an updated version or official mitigation.
- Restrict plugin access to trusted users until remediation is confirmed.
- Review contributor and administrator accounts for unnecessary access.
Validation and detection
- Confirm whether the UX Flat plugin is installed on each WordPress site.
- Verify the installed plugin version is greater than 5.4.0, if a fixed version exists.
- Review vendor or Patchstack advisories for exact affected and fixed version details.
- Check logs and content changes for suspicious script-like stored content.
- Confirm no untrusted users have roles able to create 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-2026-24576 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
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:R/S:C/C:L/I:L/A:L2.33.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
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 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.