GHSA-JXVC-XJM6-C4GC
Vulnerability from github – Published: 2026-04-22 21:31 – Updated: 2026-04-22 21:31The WP Circliful plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' shortcode attribute of the [circliful] shortcode and via multiple shortcode attributes of the [circliful_direct] shortcode in all versions up to and including 1.2. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, in the circliful_shortcode() function, the 'id' attribute value is concatenated directly into an HTML id attribute (line 285) without any escaping, allowing an attacker to break out of the double-quoted attribute and inject arbitrary HTML event handlers. Similarly, the circliful_direct_shortcode() function (line 257) outputs all shortcode attributes directly into HTML data-* attributes without escaping. 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.
{
"affected": [],
"aliases": [
"CVE-2026-3659"
],
"database_specific": {
"cwe_ids": [
"CWE-79"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-15T09:16:32Z",
"severity": "MODERATE"
},
"details": "The WP Circliful plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027id\u0027 shortcode attribute of the [circliful] shortcode and via multiple shortcode attributes of the [circliful_direct] shortcode in all versions up to and including 1.2. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, in the circliful_shortcode() function, the \u0027id\u0027 attribute value is concatenated directly into an HTML id attribute (line 285) without any escaping, allowing an attacker to break out of the double-quoted attribute and inject arbitrary HTML event handlers. Similarly, the circliful_direct_shortcode() function (line 257) outputs all shortcode attributes directly into HTML data-* attributes without escaping. 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.",
"id": "GHSA-jxvc-xjm6-c4gc",
"modified": "2026-04-22T21:31:44Z",
"published": "2026-04-22T21:31:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3659"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/tags/1.2/wp-circliful.php#L241"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/tags/1.2/wp-circliful.php#L257"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/tags/1.2/wp-circliful.php#L263"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/tags/1.2/wp-circliful.php#L285"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/trunk/wp-circliful.php#L241"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/trunk/wp-circliful.php#L257"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/trunk/wp-circliful.php#L263"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/trunk/wp-circliful.php#L285"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/030534e2-bf7d-42e4-94a1-986f629bea15?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.