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CVE Record

CVE-2025-31433: WordPress Magic Embeds plugin <= 3.1.2 - Cross Site Scripting (XSS) Vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Miguel Sirvent Magic Embeds wp-embed-facebook allows Stored XSS.This issue affects Magic Embeds: from n/a through <= 3.1.2.

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2025-31433 is a stored cross-site scripting issue in the WordPress Magic Embeds plugin, package wp-embed-facebook, affecting versions through 3.1.2. A lower-privileged authenticated user may be able to store script content that later runs when another user views the affected page.

Executive priority

Treat this as a moderate-priority WordPress application risk. Prioritize externally exposed sites, sites with many contributors, and sites where administrators frequently review user-submitted content.

Technical view

The CVE describes CWE-79 improper neutralization during page generation in Magic Embeds. CVSS 3.1 is 6.5 with network access, low complexity, low privileges, required user interaction, changed scope, and low confidentiality, integrity, and availability impact.

Likely exposure

Exposure is limited to WordPress sites using Miguel Sirvent Magic Embeds/wp-embed-facebook at version 3.1.2 or older. Sites without this plugin are not indicated as affected.

Exploitation context

The provided sources do not show CISA KEV listing or confirmed active exploitation. The stored XSS nature means impact depends on whether an authenticated user can submit affected content and whether privileged users later view it.

Researcher notes

Affected-version metadata in the bundle is somewhat inconsistent, listing versions as “0” while the CVE description says through <=3.1.2. Use the description and Patchstack reference for scoping, then verify directly in WordPress inventory.

Mitigation direction

  • Inventory WordPress sites for Magic Embeds or wp-embed-facebook.
  • Check Patchstack and vendor guidance for a fixed version or official workaround.
  • Disable or remove the plugin where it is not business-critical.
  • Restrict content-editing privileges to trusted accounts until remediation is confirmed.
  • Monitor WordPress and security logs for suspicious saved content changes.

Validation and detection

  • Confirm whether Magic Embeds/wp-embed-facebook is installed on each WordPress site.
  • Record the installed plugin version and flag versions through 3.1.2.
  • Review which roles can create or modify plugin-processed content.
  • Check whether vendor or Patchstack remediation guidance has been applied.
  • Review recent content changes and alerts for stored XSS indicators.
Prepared
Confidence
medium
Sources
3

Public sources used

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.

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cve · low confidence lookup

CVE-2025-31433 mapping review

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

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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
0Timeline events
0ADP providers
2Source links

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:L2.33.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2025-31433Attack 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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Miguel SirventMagic Embedswp-embed-facebook, 0unaffected
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.