dbcve.org
Cross-site Scripting (XSS)Weakness · CWE-79

CVE-2026-1263

MEDIUM · 6.4 CVSS v3.1 Published 2026-04-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
70/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The Webling plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 3.9.0 due to insufficient input sanitization, insufficient output escaping, and missing capabilities checks in the 'webling_admin_save_form' and 'webling_admin_save_memberlist' functions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject Webling forms and memberlists with arbitrary web scripts that will execute whenever an administrator views the related form or memberlist area of the WordPress admin.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The Webling WordPress plugin (versions up to 3.9.0) contains a stored XSS vulnerability in the webling_admin_save_form and webling_admin_save_memberlist functions. Authenticated attackers with Subscriber-level access can inject malicious JavaScript through unsanitized input, which executes when administrators view the affected form or memberlist areas in the admin dashboard.

MitigationUpdate the Webling plugin to a version beyond 3.9.0 when available, or implement proper input sanitization (sanitize_text_field, esc_html), output escaping, and WordPress capability checks (current_user_can) in the affected functions.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Webling plugin is installed
    Navigate to WordPress admin dashboard > Plugins > Installed Plugins and look for 'Webling' in the list. Alternatively, check the /wp-content/plugins/ directory for a folder named 'webling' or check the plugin header in webling.php for the plugin name.
    Affected if The Webling plugin appears in the installed plugins list.
  2. Identify the installed version of Webling
    In the WordPress admin, go to Plugins > Installed Plugins, find Webling, and note the version number displayed below the plugin name. Alternatively, open /wp-content/plugins/webling/webling.php and look for 'Version:' in the plugin header comments.
    Affected if The installed version is 3.9.0 or any earlier version.
  3. Verify the vulnerable functions exist in the codebase
    Access the site via FTP or file manager, then locate and open the main plugin file (typically webling.php or a file in /includes/). Search for the strings 'webling_admin_save_form' and 'webling_admin_save_memberlist' using a text search.
    Affected if Both functions are found in the plugin code and contain input handling without visible sanitization functions like sanitize_text_field or esc_html.
  4. Inspect user roles with access to the affected functions
    In WordPress admin, go to Users > All Users and review which users have the Subscriber role. Also check if any custom roles have been granted capabilities related to webling (webling_manage_options, webling_edit_forms, or similar).
    Affected if There are Subscriber-level users or users with low-privilege roles who can access the plugin's admin functions.
  5. Search for injected scripts in form and memberlist data
    Access the WordPress database via phpMyAdmin or command line. Query the wp_postmeta or wp_options table (or any table prefixed with the WordPress prefix) for records containing the webling form or memberlist post types. Look for unusual script tags, onerror attributes, or javascript: URIs in stored values.
    Affected if Any records in the plugin's data tables contain <script> tags, javascript: protocols, or HTML event handlers (onload, onerror, onclick).

A user is affected if the Webling plugin version is 3.9.0 or earlier AND the vulnerable save functions exist AND low-privilege users have access to the plugin, with potential evidence of malicious script injection in stored form or memberlist data.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update the Webling plugin to a version beyond 3.9.0 when available, or implement proper input sanitization (sanitize_text_field, esc_html), output escaping, and WordPress capability checks (current_user_can) in the affected functions.

Recommended fix Moderate confidence

Webling plugin version 3.9.1 or later

  1. Log in to WordPress admin dashboard
  2. Navigate to Plugins > Installed Plugins
  3. Locate the Webling plugin
  4. Check if an update is available for the Webling plugin
  5. If update available, click 'Update Now' to install the latest version
  6. After update, verify the plugin is running version 3.9.1 or higher
  7. Confirm the update was successful by viewing the plugin version

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-1263 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data