HappyformsWordPress extension
CVE-2023-48752
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 · uneditedImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Happyforms Form builder to get in touch with visitors, grow your email list and collect payments — Happyforms allows Reflected XSS.This issue affects Form builder to get in touch with visitors, grow your email list and collect payments — Happyforms: from n/a through 1.25.9.
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 confidenceReflected XSS vulnerability in Happyforms Form builder plugin allows attackers to inject malicious scripts through unsanitized input that gets reflected back in web pages, potentially compromising user sessions when they interact with crafted form URLs.
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
HappyformsWordPress extension
<= 1.25.9CVSS 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 checksWork through these to decide whether this CVE applies to you.
-
Locate Happyforms plugin installationCheck your WordPress installation's plugin directory for the Happyforms plugin folder, typically at /wp-content/plugins/happyforms/, and look for the main plugin file containing the version numberAffected if Happyforms plugin is installed on the WordPress site
-
Identify installed versionOpen the main Happyforms plugin file (usually happyforms.php) and locate the 'Version' header in the plugin metadata, or query the WordPress database in wp_options for the 'happyforms_version' optionAffected if The version number is 1.25.9 or lower
-
Confirm publicly accessible forms existVisit your site's form pages or check the Happyforms settings to list all published forms accessible via front-end URLsAffected if Publicly accessible forms exist on the site using the vulnerable plugin version
-
Test for reflected parametersConstruct a test form URL and add a suspicious parameter like ?test=<script>alert(1)</script>, then request the URL and inspect the page source to see if the parameter value is reflected without sanitizationAffected if The parameter value appears unescaped in the HTML output (visible <script> tags or event handlers)
You are affected if Happyforms plugin version 1.25.9 or lower is installed AND your site has publicly accessible forms that reflect URL parameters back into the page without proper encoding.
Generated from the published advisory. Verify against your own configuration.
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 dataUpdate Happyforms to the latest version that addresses this vulnerability, or implement proper input sanitization and output encoding for all form parameters and user inputs.
Fix this in Happyforms
Scoped from the published advisory
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-48752 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-48752 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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