CVE-2025-23434: WordPress Easy EU Cookie law plugin <= 1.3.3.1 - Stored Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in viher3 Easy EU Cookie law easy-eu-cookie-law allows Stored XSS.This issue affects Easy EU Cookie law: from n/a through <= 1.3.3.1.
Security readout for executives and security teams
Plain-English summary
CVE-2025-23434 is a stored cross-site scripting issue in the WordPress Easy EU Cookie law plugin through version 1.3.3.1. If exploitable in a site, attacker-supplied content could be stored and later run in another user's browser. The sources rate it medium severity and do not show active exploitation.
Executive priority
Treat this as a targeted remediation item for WordPress estates, not an emergency based on current sources. Prioritize sites with the plugin installed, multiple content editors, or high-value administrative sessions. Absence from KEV reduces urgency, but stored XSS can still support account compromise paths.
Technical view
The vulnerability is CWE-79 improper neutralization during web page generation in viher3 Easy EU Cookie law. CVSS 3.1 is 6.5: network reachable, low complexity, low privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites using the Easy EU Cookie law plugin at version 1.3.3.1 or earlier. The bundle does not identify the affected field, endpoint, or required WordPress role, so confirm exposure through plugin inventory and vendor guidance.
Exploitation context
The source bundle marks KEV as false and provides no cited evidence of active exploitation. CVSS indicates exploitation would require low privileges and user interaction. Because it is stored XSS, risk is higher where untrusted or lower-privileged users can save plugin-controlled content viewed by others.
Researcher notes
Evidence is limited to the CVE record and Patchstack reference. The bundle does not provide proof-of-concept details, affected parameter names, patch version, or exploitation telemetry. Avoid assuming broader WordPress impact beyond the Easy EU Cookie law plugin through 1.3.3.1.
Mitigation direction
Identify WordPress sites running Easy EU Cookie law.
Check whether installed versions are 1.3.3.1 or earlier.
Review Patchstack and vendor guidance for fixed versions or official mitigations.
Restrict plugin configuration access to trusted administrators.
Remove or disable the plugin if no maintained fix is available.
Validation and detection
Confirm plugin name, slug, and version in WordPress inventory.
Review whether the plugin is active on public or sensitive sites.
Check administrative content managed by the plugin for unexpected script content.
Verify whether vendor or Patchstack advisories list a patched release.
Record compensating controls if the plugin cannot be updated immediately.
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.