LiveActive security incident?Get immediate response
CVE Record

CVE-2025-31587: WordPress Elfsight Testimonials Slider plugin <= 1.0.1 - Cross Site Scripting (XSS) vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in elfsight Elfsight Testimonials Slider elfsight-testimonials-slider allows Stored XSS.This issue affects Elfsight Testimonials Slider: from n/a through <= 1.0.1.

MediumCVSS 5.9Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2025-31587 is a stored cross-site scripting issue in the WordPress Elfsight Testimonials Slider plugin through version 1.0.1. A highly privileged user could save unsafe content that later runs in another user’s browser. The available sources rate it medium severity, not a broad unauthenticated compromise.

Executive priority

Treat this as a targeted WordPress plugin hygiene issue. Prioritize internet-facing sites using this plugin, especially where many administrators or editors exist. It should be remediated in normal vulnerability management cycles unless local evidence shows suspicious content changes.

Technical view

The CVE describes CWE-79 improper input neutralization during web page generation in elfsight-testimonials-slider. CVSS 3.1 is 5.9 with network access, low complexity, high privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.

Likely exposure

Exposure is limited to WordPress sites that installed Elfsight Testimonials Slider version 1.0.1 or earlier. The source bundle does not identify affected fields, required WordPress roles, or whether a fixed version exists.

Exploitation context

The source bundle does not report active exploitation, and the CVE is not marked in KEV. The CVSS vector indicates exploitation requires high privileges and a victim interaction path, reducing urgency compared with unauthenticated XSS.

Researcher notes

The public bundle confirms stored XSS but lacks vulnerable parameter details, patch availability, exploit proof, and role mapping beyond CVSS PR:H. Avoid assuming unauthenticated exploitation or a specific fix. Validate exposure through asset inventory and vendor advisory checks.

Mitigation direction

  • Inventory WordPress sites for elfsight-testimonials-slider and record installed versions.
  • Check vendor or Patchstack guidance for a fixed release or official workaround.
  • Disable or remove the plugin where it is unused or cannot be updated.
  • Restrict high-privilege WordPress accounts to trusted users only.
  • Review administrator-created testimonial content for unexpected scripts or unsafe HTML.

Validation and detection

  • Confirm whether any site runs Elfsight Testimonials Slider version 1.0.1 or earlier.
  • Verify plugin status against CVE and Patchstack records.
  • Review WordPress role assignments for users able to edit plugin-managed content.
  • In authorized staging only, verify saved testimonial content is safely escaped on render.
  • Check security monitoring for suspicious content changes in affected areas.
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-2025-31587 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
5.9 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:H/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
5.9CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L1.73.7Patchstack

Vulnerability scoring details

Base CVSS 3.1 score

5.9Medium
CVSS 3.1 vector shape for CVE-2025-31587Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:H/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
elfsightElfsight Testimonials Sliderelfsight-testimonials-slider, 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.