Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in netbitsolutions Push Envoy Notifications push-envoy allows Reflected XSS.This issue affects Push Envoy Notifications: from n/a through <= 1.0.0.
Security readout for executives and security teams
Plain-English summary
CVE-2025-23556 is a reflected cross-site scripting issue in the WordPress Push Envoy Notifications plugin through version 1.0.0. An attacker would need a user to interact with a crafted request, but successful abuse could affect confidentiality, integrity, and availability in the user’s browser context.
Executive priority
Treat this as high priority for any WordPress estate using the plugin, especially sites with administrator traffic. The business decision is straightforward: find affected installs quickly, remove or disable unsupported exposure, and monitor vendor guidance because no fixed version is named in the provided sources.
Technical view
The source bundle describes CWE-79 improper neutralization during web page generation in netbitsolutions Push Envoy Notifications, package push-envoy. CVSS 3.1 is 7.1 with network attack vector, low complexity, no privileges required, required user interaction, and changed scope. No affected CPEs or fixed version are provided.
Likely exposure
Exposure is limited to WordPress sites that have the Push Envoy Notifications plugin installed at version 1.0.0 or earlier. The bundle does not identify affected hosting providers, default install prevalence, or whether the plugin is actively maintained.
Exploitation context
The provided data does not show CISA KEV listing or cited evidence of active exploitation. The issue is remotely reachable and does not require attacker authentication, but it does require user interaction, consistent with reflected XSS risk.
Researcher notes
Evidence is sufficient to classify the bug as reflected XSS in push-envoy through 1.0.0, but incomplete for exploit details, fixed versions, vulnerable parameters, or proof of exploitation. Avoid assuming broader WordPress impact beyond this plugin and version range.
Mitigation direction
Inventory WordPress sites for the Push Envoy Notifications plugin.
Identify any installations at version 1.0.0 or earlier.
Check vendor and Patchstack guidance for a fixed release or official mitigation.
Disable or remove the plugin where no safe version is available.
Prioritize admin-facing sites and high-traffic public WordPress properties.
Validation and detection
Confirm plugin name, slug, and version from WordPress inventory.
Verify no production site runs Push Envoy Notifications version 1.0.0 or earlier.
Review web logs for unusual requests targeting Push Envoy plugin paths.
Document KEV status as not listed in the provided bundle.
Track Patchstack and CVE records for remediation updates.
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.