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CVE Record

CVE-2025-11262: Link Whisper Free <= 0.9.0 - Unauthenticated Stored Cross-Site Scripting

The Link Whisper Free plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the user_id parameter in all versions up to, and including, 0.9.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

HighCVSS 7.2Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2025-11262 affects the Link Whisper Free WordPress plugin through version 0.9.0. An unauthenticated attacker may store malicious script content that runs when someone visits an affected page. This can expose site users or administrators to browser-level compromise, content tampering, and trust damage.

Executive priority

Treat this as a high-priority WordPress plugin exposure. Prioritize internet-facing sites and sites with administrator traffic, because stored XSS can convert a website issue into user or admin browser risk.

Technical view

The issue is stored cross-site scripting in the user_id parameter caused by insufficient input sanitization and output escaping. The CVSS 3.1 score is 7.2, with network attack vector, low complexity, no privileges required, and scope changed. The source identifies CWE-79 and affected Link Whisper Free versions up to 0.9.0.

Likely exposure

Exposure is likely limited to WordPress sites running Link Whisper Free version 0.9.0 or earlier. The bundle does not identify other products, forks, or hosted services as affected.

Exploitation context

The CVE source states unauthenticated attackers can inject scripts that execute when an injected page is accessed. The bundle does not cite CISA KEV listing or confirmed active exploitation, so active exploitation should not be assumed.

Researcher notes

Evidence is sufficient for affected plugin, vulnerability class, unauthenticated reachability, and version boundary. Evidence is incomplete for exploit-in-the-wild, exact fixed version, and vendor mitigation language beyond checking official plugin guidance.

Mitigation direction

  • Inventory WordPress sites for Link Whisper Free installations and versions.
  • Check vendor or WordPress plugin guidance for a fixed release beyond 0.9.0.
  • Update if a fixed version is available from the official plugin source.
  • Disable or remove the plugin where no safe fixed version is available.
  • Review affected sites for unexpected injected script content.

Validation and detection

  • Confirm whether Link Whisper Free is installed on each WordPress site.
  • Record installed plugin versions and flag version 0.9.0 or earlier.
  • Review vendor changelog and advisory references before declaring remediation complete.
  • Inspect affected pages for unexpected scripts or unauthorized content changes.
  • Check recent site activity for suspicious unauthenticated interaction patterns.
Prepared
Confidence
high
Sources
5

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-2025-11262 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
High
CVSS
7.2 (3.1)
Known Exploited
No
Published

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

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
5Timeline events
1ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical 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
7.2CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N3.92.7Wordfence

Vulnerability scoring details

Base CVSS 3.1 score

7.2High
CVSS 3.1 vector shape for CVE-2025-11262Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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. Source timelineWordfence

    Vendor Notified

  3. Source timelineWordfence

    Disclosed

  4. CVE publishedCVE Program

    The CVE record was published.

  5. 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
linkwhsprLink Whisper Free0unaffected
Weakness

CWE details

CWE-79

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