CVE-2024-35646: WordPress Smartarget Message Bar plugin <= 1.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Erez Hadas-Sonnenschein Smartarget Message Bar smartarget-message-bar.This issue affects Smartarget Message Bar: from n/a through <= 1.5.
Security readout for executives and security teams
Plain-English summary
CVE-2024-35646 is a cross-site scripting issue in the WordPress Smartarget Message Bar plugin. The supplied CVE data says versions through 1.5 are affected. A successful attack could let script run in a user's browser, creating limited confidentiality, integrity, and availability impact.
Executive priority
Treat as a moderate website hygiene issue. Prioritize externally facing WordPress sites, especially where many administrators can modify plugin settings. It is not listed as known exploited in the supplied data.
Technical view
The vulnerability is CWE-79 improper input neutralization during page generation in smartarget-message-bar. CVSS 3.1 is 5.9 with network access, low complexity, high privileges required, user interaction required, changed scope, and low C/I/A impact.
Likely exposure
Exposure is limited to WordPress sites running Smartarget Message Bar at affected versions, described as through 1.5 in the CVE data. Sites not using this plugin are not exposed based on the provided sources.
Exploitation context
The source bundle does not identify active exploitation, and KEV is false. The CVSS vector indicates exploitation requires high privileges and user interaction, reducing urgency compared with unauthenticated XSS, but public websites should still address it.
Researcher notes
There is a source inconsistency: the CVE description and title state affected through 1.5, while Patchstack reference titles mention 1.3. No exploit details or fixed version are provided in the bundle.
Mitigation direction
Inventory WordPress sites for the Smartarget Message Bar plugin and installed versions.
Check vendor, WordPress plugin, or Patchstack guidance for a fixed version.
Disable or remove the plugin where it is not business-critical.
Limit high-privilege WordPress accounts and enforce MFA.
Monitor admin activity and unexpected content changes.
Validation and detection
Confirm whether smartarget-message-bar is installed on each WordPress site.
Compare installed versions against the CVE affected range through 1.5.
Review page output and plugin settings for untrusted script-like content.
Check logs for unusual high-privilege account activity.
Track Patchstack and CVE updates for corrected version details.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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 · medium confidence lookup
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.
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.
We 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.