Security readout for executives and security teams
Plain-English summary
CVE-2024-13736 affects the WordPress Pure Chat – Live Chat & More! plugin through unsafe handling of the purechatWidgetName parameter. An unauthenticated attacker may cause JavaScript to run in a visitor’s browser when a crafted or affected page is viewed. Business impact is mainly account compromise risk, defacement-like behavior, and trust loss on impacted WordPress sites.
Executive priority
Handle during normal vulnerability remediation, faster for public WordPress sites with high traffic, customer logins, or admin users who browse site pages. There is no KEV evidence here, but unauthenticated XSS on public sites can still create meaningful brand and account risk.
Technical view
The sources describe CWE-79 cross-site scripting in Pure Chat – Live Chat & More! through insufficient input sanitization and output escaping of purechatWidgetName in versions up to and including 2.4. The CVSS 3.1 score is 6.1, network exploitable, low complexity, no privileges required, with user interaction required and changed scope. Sources conflict on reflected versus stored wording.
Likely exposure
Exposure is limited to WordPress sites with the Pure Chat – Live Chat & More! plugin installed, especially versions 2.4 or older. The bundle does not prove exposure for sites without that plugin or for installations already updated beyond the vulnerable range.
Exploitation context
The bundle marks CISA KEV as false and provides no cited evidence of active exploitation. The issue requires user interaction, so risk depends on whether an attacker can get a victim to view affected content or a crafted page.
Researcher notes
The bundle contains an inconsistency: the title says reflected XSS, while the description says stored XSS. Do not assume persistence beyond the cited wording without reviewing the referenced code and changesets. Focus validation on purechatWidgetName sanitization and output escaping behavior, without attempting weaponized payloads.
Mitigation direction
- Inventory WordPress sites for the Pure Chat plugin and installed version.
- Treat plugin versions 2.4 and older as vulnerable.
- Check the WordPress plugin page and vendor guidance for a fixed release.
- Update to a fixed version if available through trusted WordPress channels.
- Disable or remove the plugin where no fixed version is available or needed.
- Review affected sites for unexpected scripts or suspicious content changes.
Validation and detection
- Confirm whether Pure Chat – Live Chat & More! is installed on each WordPress site.
- Record the installed plugin version and compare it with the 2.4 vulnerable range.
- Review Wordfence and WordPress plugin references for current remediation status.
- Inspect pages using the plugin for unexpected script execution indicators.
- Verify web application protections do not substitute for plugin remediation.
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-2024-13736 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e11993c1-48fa-4e37-850d-d02e3e20d56f?source=cveCVE reference
- https://wordpress.org/plugins/pure-chat/#developersCVE reference
- https://plugins.trac.wordpress.org/browser/pure-chat/trunk/purechat.php#L149CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3245968%40pure-chat&new=3245968%40pure-chat&sfp_email=&sfph_mail=CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3243536%40pure-chat&new=3243536%40pure-chat&sfp_email=&sfph_mail=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.