# CVE-2026-123473: weDevs Happy Addons for Elementor stored cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-123473-improper-neutralization-of-input-during-web-page-generation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-11. Updated: 2026-11-11  
License: CC BY 4.0 with a link back

CVE-2026-123473 · Severity: medium · CVSS 6.5 · Published 2026-11-11

Happy Addons for Elementor is a WordPress plugin that extends the Elementor page builder with additional widgets and functionality for website design. A stored cross-site scripting (XSS) vulnerability allows an authenticated attacker with contributor or higher privileges to inject malicious scripts that execute in visitors' browsers, potentially stealing their data or hijacking their accounts. The vulnerability affects versions up to 3.51.0.

Technologies: [weDevs Happy Addons for Elementor](https://junglewise.ai/threats/technologies/wedevs-happy-addons-for-elementor). Vendors: [weDevs](https://junglewise.ai/threats/vendors/wedevs).

## Quick answers

**Is CVE-2026-123473 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-123473 being exploited in the wild.

**How severe is CVE-2026-123473?** Medium severity, with a CVSS score of 6.5, published 11 November 2026.

**Which products and versions are affected?** weDevs Happy Addons for Elementor up to 3.51.0.

**Is there a fix for CVE-2026-123473?** Yes: fixed in 3.51.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-123473 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-123473?** Check whether you run weDevs Happy Addons for Elementor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 3.51.3

## Technical details

The plugin fails to properly neutralize user input during web page generation, allowing stored XSS attacks. Successful exploitation requires a privileged user account (contributor level or above) to perform an action such as submitting a form or crafting a page. An attacker with the necessary privileges can inject malicious JavaScript that persists in the database and executes when other users view the affected content.

## Affected products

- weDevs Happy Addons for Elementor up to 3.51.0

## Timeline

- 2026-11-02: disclosed: Reported to Patchstack
- 2026-11-11: advisory: Published by Patchstack

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/happy-elementor-addons/vulnerability/wordpress-happy-addons-for-elementor-plugin-3-51-0-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/happy-elementor-addons/vulnerability/wordpress-happy-addons-for-elementor-plugin-3-51-0-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [weDevs Happy Addons for Elementor broken access control](https://junglewise.ai/threats/cve-2026-124269-missing-authorization-vulnerability-in-wedevs-happy-addons-for)
- [weDevs Happy Addons for Elementor broken access control](https://junglewise.ai/threats/cve-2026-109891-missing-authorization-vulnerability-in-wedevs-happy-addons-for)
- [weDevs Happy Addons for Elementor stored cross-site scripting](https://junglewise.ai/threats/cve-2026-116850-improper-neutralization-of-input-during-web-page-generation)
- [Happy Addons for Elementor cross-site scripting in contributor actions](https://junglewise.ai/threats/cve-2026-62080-contributor-cross-site-scripting-xss-in-happy-addons-for)