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CVE Record

CVE-2026-1189: LeadBI Plugin for WordPress <= 1.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'form_id' Shortcode Attribute

The LeadBI Plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form_id' parameter of the 'leadbi_form' shortcode in all versions up to, and including, 1.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

MediumCVSS 6.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-1189 is a stored cross-site scripting issue in the LeadBI WordPress plugin. A logged-in user with Contributor-level access or higher could place script content through a shortcode attribute. That script may run when someone views the affected page, potentially exposing session data or enabling actions in the viewer’s browser.

Executive priority

Treat as a near-term web application hygiene issue. Prioritize sites with many content contributors, public registration, or administrators who frequently review user-submitted posts. It is not currently documented as exploited in the provided sources.

Technical view

LeadBI Plugin for WordPress versions up to and including 1.7 insufficiently sanitize and escape the form_id attribute of the leadbi_form shortcode. The issue is CWE-79 stored XSS with CVSS 3.1 score 6.4. Exploitation requires authenticated Contributor+ access and impacts users who load the injected content.

Likely exposure

Exposure is limited to WordPress sites using the LeadBI plugin at version 1.7 or earlier, especially where untrusted users can create or edit content with Contributor-level privileges or above.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation. The attacker needs a valid WordPress account with sufficient content privileges. Stored XSS can become more serious if administrators view affected pages while authenticated.

Researcher notes

Primary evidence comes from the CVE description and Wordfence reference. The bundle does not name a fixed version. The affected metadata is less clear than the description, so validate against WordPress plugin release information before closing remediation.

Mitigation direction

  • Inventory WordPress sites for the LeadBI plugin and version.
  • Check WordPress plugin and vendor guidance for a fixed release.
  • Update the plugin if a fixed version is available.
  • Disable or remove the plugin if it is unused or cannot be safely updated.
  • Limit Contributor and higher roles to trusted users only.
  • Review shortcode usage before publishing contributor-submitted content.

Validation and detection

  • Confirm whether LeadBI Plugin for WordPress is installed.
  • Identify installations running version 1.7 or earlier.
  • Review pages and posts containing the leadbi_form shortcode.
  • Inspect form_id shortcode attributes for unexpected script-like content.
  • Verify the plugin sanitizes and escapes shortcode attributes after updating.
  • Monitor WordPress audit logs for suspicious contributor edits.
Prepared
Confidence
medium
Sources
6

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-2026-1189 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
6.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/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
0Timeline events
0ADP providers
5Source 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
6.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.4Medium
CVSS 3.1 vector shape for CVE-2026-1189Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
leadbiLeadBI Plugin for WordPress0unaffected
Weakness

CWE details

CWE-79

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