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CVE Record

CVE-2025-31801: WordPress MX Time Zone Clocks plugin <= 5.1.1 - Cross Site Scripting (XSS) vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Maksym Marko MX Time Zone Clocks mx-time-zone-clocks allows Reflected XSS.This issue affects MX Time Zone Clocks: from n/a through <= 5.1.1.

MediumCVSS 6.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2025-31801 is a reflected cross-site scripting issue in the WordPress MX Time Zone Clocks plugin through version 5.1.1. A successful attack could let a lower-privileged attacker cause script execution in another user’s browser if that user interacts with malicious content.

Executive priority

Treat this as a moderate-priority WordPress hygiene issue. Prioritize sites with administrative users, customer portals, or broad contributor access. It is not listed as known exploited in the provided bundle, but XSS can support account abuse and content manipulation.

Technical view

The CVE describes CWE-79 improper neutralization during web page generation in mx-time-zone-clocks. CVSS 3.1 is 6.5 with network attack vector, low complexity, low privileges required, user interaction required, and changed scope with low confidentiality, integrity, and availability impact.

Likely exposure

Exposure is limited to WordPress environments running the MX Time Zone Clocks plugin at version 5.1.1 or earlier. The bundle does not identify affected endpoints, parameters, install prevalence, or whether unauthenticated visitors can reach vulnerable rendering paths.

Exploitation context

The source bundle does not show CISA KEV listing or any cited active exploitation. The CVSS vector indicates exploitation requires low privileges and user interaction, so risk depends on who can trigger the vulnerable input and which users can be induced to interact.

Researcher notes

Evidence is incomplete for root cause and remediation. The bundle does not provide vulnerable parameter names, proof-of-concept details, affected code paths, or a confirmed patched version. Base analysis on version exposure, CVSS conditions, and vendor or Patchstack updates.

Mitigation direction

  • Inventory WordPress sites for the MX Time Zone Clocks plugin.
  • Identify any installs at version 5.1.1 or earlier.
  • Check vendor and Patchstack guidance for a fixed version or advisory update.
  • Update when a vendor-supported fixed version is confirmed.
  • Disable or remove the plugin if no supported fix is available.

Validation and detection

  • Verify installed plugin versions from WordPress administration or asset inventory.
  • Confirm whether mx-time-zone-clocks is present on public or internal WordPress sites.
  • Run an authorized vulnerability scanner check for CVE-2025-31801.
  • Review web logs for unusual requests targeting plugin-rendered pages.
  • Document whether compensating controls cover affected WordPress users.
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-2025-31801 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-2025-31801Attack 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
Maksym MarkoMX Time Zone Clocksmx-time-zone-clocks, 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.