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The UltralightWordPress extension · Rarathemes

CVE-2025-23998

MEDIUM · 6.1 CVSS v3.1 Published 2025-01-21
Fix available
A fix is available. Upgrade to after 1.2 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in raratheme UltraLight the-ultralight allows Reflected XSS.This issue affects UltraLight: from n/a through <= 1.2.

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 · moderate confidence

A reflected Cross-site Scripting (XSS) vulnerability exists in the raratheme UltraLight WordPress theme (versions through 1.2). The vulnerability allows attackers to inject malicious JavaScript code through unsanitized user input that gets reflected in web pages without proper output encoding.

MitigationThe theme developer should release a patch that implements proper input validation and output encoding for all user-supplied parameters. Users should update to any newer version the developer releases that addresses this issue.

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

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
The UltralightWordPress extension
Affected:<= 1.2

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
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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. Check installed theme version
    Access the WordPress admin panel, go to Appearance > Themes, and locate the UltraLight theme. The version number is displayed in the theme details. Alternatively, open the file /wp-content/themes/ultralight/style.css and check the 'Version' header in the theme stylesheet comments.
    Affected if The displayed version is 1.2 or any version number lower than 1.2.
  2. Confirm the theme is active
    In WordPress admin under Appearance > Themes, verify that the UltraLight theme is currently activated and being used on the site.
    Affected if The UltraLight theme version 1.2 or lower is active on the WordPress site.
  3. Identify reflected input points
    Review the theme templates (particularly header.php, footer.php, search.php, and any template files that handle URL parameters like $_GET requests). Look for instances where PHP variables like $_GET['s'], $_REQUEST, or other query parameters are output directly to the page without visible sanitization functions such as esc_html(), esc_attr(), or esc_url().
    Affected if The theme contains template files that echo request parameters directly to HTML output without using WordPress escaping functions.
  4. Test for XSS in search functionality
    With the theme active, perform a search on the site using a test query containing a simple XSS payload such as <script>alert('XSS')</script> or <img src=x onerror=alert('XSS')>. Examine the search results page URL and HTML source to see if the payload is rendered as plain text or executed as JavaScript.
    Affected if The search query payload appears unmodified in the page HTML or triggers a JavaScript alert, indicating lack of output encoding.
  5. Check all template files for unsanitized output
    Use a text editor or grep tool to search theme PHP files for patterns like echo $_GET, echo $_REQUEST, or echo $variables derived from query params without corresponding esc_html(), esc_attr(), or similar escaping functions nearby.
    Affected if Any template file contains unescaped output of user-supplied request parameters.

The environment is affected if the UltraLight theme version 1.2 or lower is active and any page reflects user-supplied input without proper output encoding.

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.

From vendor data
Upgrade available Upgrade to a release after 1.2
Interim mitigation

The theme developer should release a patch that implements proper input validation and output encoding for all user-supplied parameters. Users should update to any newer version the developer releases that addresses this issue.

Fix this in The Ultralight Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,390
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,224.

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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-2025-23998 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