CVE-2025-23864: WordPress WCS QR Code Generator plugin <= 1.0 - Stored Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Luke America WCS QR Code Generator wcs-qr-code-generator allows Stored XSS.This issue affects WCS QR Code Generator: from n/a through <= 1.0.
Security readout for executives and security teams
Plain-English summary
A WordPress plugin used to generate QR codes can store unsafe input that later runs as script in a visitor's browser. The reported impact is moderate: it requires a logged-in attacker and user interaction, but could expose data, alter page content, or affect availability within the victim's browser session.
Executive priority
Treat as a moderate-priority WordPress application risk. Prioritize externally facing or customer-facing sites, especially where many users can manage plugin content. Escalate if vendor guidance confirms no patch or if suspicious stored content is found.
Technical view
CVE-2025-23864 is a stored XSS issue in Luke America WCS QR Code Generator for WordPress, reported through version 1.0. The CVSS 3.1 score is 6.5 with PR:L, UI:R, and changed scope. Sources identify CWE-79 but do not provide a vulnerable parameter, exploit procedure, or fixed version.
Likely exposure
Exposure is limited to WordPress sites running WCS QR Code Generator version 1.0 or earlier. The bundle does not provide installation counts, affected configurations, or evidence that other products are impacted.
Exploitation context
The source bundle does not show active exploitation, and the CVE is not listed as KEV. The score indicates network reachability, low attack complexity, required low privileges, and required user interaction.
Researcher notes
Evidence supports stored XSS in WCS QR Code Generator through 1.0 with CWE-79 and CVSS 6.5. Available sources do not include proof-of-concept details, affected parameters, remediation version, or exploitation telemetry. Avoid assuming exploitability beyond the published vector.
Mitigation direction
Inventory WordPress sites for WCS QR Code Generator installations.
Check vendor, WordPress plugin, and Patchstack guidance for a fixed release or official mitigation.
Remove or disable the plugin where it is not business-critical.
Restrict plugin administration to trusted users until guidance is confirmed.
Review stored QR-code content and related pages for unexpected script content.
Validation and detection
Confirm whether WCS QR Code Generator is installed on each WordPress site.
Record the installed plugin version and flag version 1.0 or earlier.
Review who can create or modify QR-code content in WordPress.
Check security logs and page content for suspicious stored script indicators.
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.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-79 · source CWE mapping
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.