CVE-2026-102291 (GCVE-0-2026-102291)
Vulnerability from cvelistv5 – Published: 2026-10-10 07:41 – Updated: 2026-10-10 07:41
VLAI
EPSS
VEX
Title
Kirki – Freeform Page Builder, Website Builder & Customizer <= 6.3.1 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'display_name'
Summary
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 6.3.1 This is due to the plugin substituting a user's `display_name` into the composed page markup unfiltered and then running the whole result through `do_shortcode()` in `TheFrontend::replace_content()`. Because `display_name` is writable by any user on their own account through the core profile form, this makes it possible for authenticated attackers with Subscriber-level access and above to execute arbitrary shortcodes. Where the page is a users collection — an ordinary team or member-directory page — the shortcode runs in the request of every visitor, including unauthenticated ones. Requires a published page with a Kirki element whose dynamic content is bound to the `display_name` user field.
Severity
5.4 (Medium)
CWE
- CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| themeum | Kirki – Freeform Page Builder, Website Builder & Customizer |
Affected:
0 , ≤ 6.3.1
(semver)
|
guessed |
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}
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"providerMetadata": {
"dateUpdated": "2026-10-10T07:41:47.748Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
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"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/bed93040-a843-417e-89b4-5ab3cba788aa?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/TheFrontend.php#L144"
},
{
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},
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},
{
"url": "https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/HelperFunctions.php#L1117"
},
{
"url": "https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Manager/PluginShortcode.php#L40"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026new=3718900%40kirki%2Ftags%2F6.3.2\u0026old=3697265%40kirki%2Ftags%2F6.3.1"
}
],
"timeline": [
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"lang": "en",
"time": "2026-09-28T20:50:31.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-10-09T18:47:02.000Z",
"value": "Disclosed"
}
],
"title": "Kirki \u2013 Freeform Page Builder, Website Builder \u0026 Customizer \u003c= 6.3.1 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via \u0027display_name\u0027"
}
},
"cveMetadata": {
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"datePublished": "2026-10-10T07:41:47.748Z",
"dateReserved": "2026-09-28T20:34:15.636Z",
"dateUpdated": "2026-10-10T07:41:47.748Z",
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"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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"percentile": "0.21375"
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"nvd": {
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"status": "affected",
"version": "0",
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"cveTags": [],
"descriptions": [
{
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"value": "The Kirki \u2013 Freeform Page Builder, Website Builder \u0026 Customizer plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 6.3.1 This is due to the plugin substituting a user\u0027s `display_name` into the composed page markup unfiltered and then running the whole result through `do_shortcode()` in `TheFrontend::replace_content()`. Because `display_name` is writable by any user on their own account through the core profile form, this makes it possible for authenticated attackers with Subscriber-level access and above to execute arbitrary shortcodes. Where the page is a users collection \u2014 an ordinary team or member-directory page \u2014 the shortcode runs in the request of every visitor, including unauthenticated ones. Requires a published page with a Kirki element whose dynamic content is bound to the `display_name` user field."
}
],
"id": "CVE-2026-102291",
"lastModified": "2026-10-10T08:17:03.490",
"metrics": {
"cvssMetricV31": [
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"attackVector": "NETWORK",
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"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
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"source": "security@wordfence.com",
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},
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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