CVE-2026-15790 (GCVE-0-2026-15790)
Vulnerability from cvelistv5
Published
2026-08-16 05:27
Modified
2026-08-17 15:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
The Youtube Showcase plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 4.0.4 via the 'emd_mb_meta' shortcode. This is due to insufficient input sanitization and output escaping on attachment titles referenced by the shortcode's image field: EMD_MB_Helper::image_info() returns the attachment's raw post_title, and EMD_MB_Helper::shortcode() interpolates it into title="%s" HTML attributes via sprintf() without esc_attr(). This makes it possible for authenticated attackers, with author-level access and above (upload_files capability required to create the attachment, edit_posts/publish_posts to embed the shortcode), to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| emarket-design | Video Gallery – YouTube Gallery, Playlist & Video Grid |
Version: 0 ≤ 4.0.4 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-15790",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-17T15:37:09.372445Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T15:37:20.806Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Video Gallery \u2013 YouTube Gallery, Playlist \u0026 Video Grid",
"vendor": "emarket-design",
"versions": [
{
"lessThanOrEqual": "4.0.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Wordfence PRISM"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Youtube Showcase plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 4.0.4 via the \u0027emd_mb_meta\u0027 shortcode. This is due to insufficient input sanitization and output escaping on attachment titles referenced by the shortcode\u0027s image field: EMD_MB_Helper::image_info() returns the attachment\u0027s raw post_title, and EMD_MB_Helper::shortcode() interpolates it into title=\"%s\" HTML attributes via sprintf() without esc_attr(). This makes it possible for authenticated attackers, with author-level access and above (upload_files capability required to create the attachment, edit_posts/publish_posts to embed the shortcode), to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-16T05:27:27.630Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3be5e544-1ea5-46f6-a15b-99b0e3718c91?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/youtube-showcase/tags/4.0.4/assets/ext/emd-meta-box/inc/helpers.php#L72"
},
{
"url": "https://plugins.trac.wordpress.org/browser/youtube-showcase/tags/4.0.4/assets/ext/emd-meta-box/inc/helpers.php#L274"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-07-14T19:45:11.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-08-15T17:25:12.000Z",
"value": "Disclosed"
}
],
"title": "Video Gallery \u003c= 4.0.4 - Authenticated (Author+) Stored Cross-Site Scripting via Attachment \u0027post_title\u0027 via emd_mb_meta Shortcode"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-15790",
"datePublished": "2026-08-16T05:27:27.630Z",
"dateReserved": "2026-07-14T19:30:01.178Z",
"dateUpdated": "2026-08-17T15:37:20.806Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"cna\": {\"title\": \"Video Gallery \u003c= 4.0.4 - Authenticated (Author+) Stored Cross-Site Scripting via Attachment \u0027post_title\u0027 via emd_mb_meta Shortcode\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Wordfence PRISM\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 6.4, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N\"}}], \"affected\": [{\"vendor\": \"emarket-design\", \"product\": \"Video Gallery \\u2013 YouTube Gallery, Playlist \u0026 Video Grid\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.0.4\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-07-14T19:45:11.000Z\", \"value\": \"Vendor Notified\"}, {\"lang\": \"en\", \"time\": \"2026-08-15T17:25:12.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/3be5e544-1ea5-46f6-a15b-99b0e3718c91?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/youtube-showcase/tags/4.0.4/assets/ext/emd-meta-box/inc/helpers.php#L72\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/youtube-showcase/tags/4.0.4/assets/ext/emd-meta-box/inc/helpers.php#L274\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Youtube Showcase plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 4.0.4 via the \u0027emd_mb_meta\u0027 shortcode. This is due to insufficient input sanitization and output escaping on attachment titles referenced by the shortcode\u0027s image field: EMD_MB_Helper::image_info() returns the attachment\u0027s raw post_title, and EMD_MB_Helper::shortcode() interpolates it into title=\\\"%s\\\" HTML attributes via sprintf() without esc_attr(). This makes it possible for authenticated attackers, with author-level access and above (upload_files capability required to create the attachment, edit_posts/publish_posts to embed the shortcode), to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-08-16T05:27:27.630Z\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-15790\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-17T15:37:09.372445Z\"}}}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2026-08-17T15:37:16.886Z\"}}]}",
"cveMetadata": "{\"cveId\": \"CVE-2026-15790\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-16T05:27:27.630Z\", \"dateReserved\": \"2026-07-14T19:30:01.178Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-08-16T05:27:27.630Z\", \"assignerShortName\": \"Wordfence\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…