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CVE Record

CVE-2025-31591: WordPress Exit Popup Free plugin <= 1.0 - Cross Site Scripting (XSS) vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in promoz73 Exit Popup Free exit-popup-free allows Stored XSS.This issue affects Exit Popup Free: from n/a through <= 1.0.

MediumCVSS 5.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2025-31591 is stored XSS in the Exit Popup Free WordPress plugin through version 1.0. A highly privileged user could save unsafe input that later runs in another user's browser. Impact is limited but can affect confidentiality, integrity, and availability in the WordPress context.

Executive priority

Treat as a targeted WordPress hygiene issue, not an emergency internet-wide exposure based on current evidence. Prioritize sites with multiple administrators, untrusted content managers, or sensitive authenticated users.

Technical view

The issue is CWE-79 improper neutralization during web page generation. CVSS 3.1 score is 5.9 with AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L. It is network-reachable, low complexity, requires high privileges and user interaction, and changes scope.

Likely exposure

Exposure appears limited to WordPress sites running promoz73 Exit Popup Free, package exit-popup-free, from unspecified earlier versions through 1.0. The source bundle does not identify affected CPEs or a fixed version.

Exploitation context

No active exploitation is cited. The CVE is not listed as KEV in the supplied data. Exploitation requires high privileges and a victim interaction path, reducing broad drive-by risk but leaving shared-admin WordPress environments exposed.

Researcher notes

Evidence is limited to CVE metadata and the Patchstack database reference. The supplied data does not include payload details, affected code paths, public exploit confirmation, or a named patched version.

Mitigation direction

  • Inventory WordPress sites for the exit-popup-free plugin through version 1.0.
  • Check Patchstack and vendor guidance for fixed versions or official mitigation.
  • Disable or remove the plugin where it is unused or cannot be safely fixed.
  • Restrict WordPress administrative access to trusted users only.
  • Review stored plugin content for unexpected script-like changes.

Validation and detection

  • Confirm installed plugin slug is exit-popup-free and record its version.
  • Verify whether any installation is version 1.0 or earlier.
  • Review WordPress roles with permission to edit plugin-managed content or settings.
  • Check logs and content history for suspicious privileged edits.
  • Document whether vendor guidance names a fixed release or workaround.
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-2025-31591 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
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-2025-31591Attack 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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
promoz73Exit Popup Freeexit-popup-free, 0unaffected
Weakness

CWE details

CWE-79

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