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CVE Record

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.

MediumCVSS 6.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

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.
Prepared
Confidence
medium
Sources
3

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-23434 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Official CVE source material

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.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

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.

ScoreVersionSeverityVectorExploitImpactSource
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L2.33.7Patchstack

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2025-23434Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
viher3Easy EU Cookie laweasy-eu-cookie-law, 0unaffected
Weakness

CWE details

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.