Search
Find a vulnerability
Search criteria
4 vulnerabilities found for Weaver Show Posts by wpweaver
CVE-2026-2121 (GCVE-0-2026-2121)
Vulnerability from nvd – Published: 2026-03-21 03:27 – Updated: 2026-04-08 17:28
VLAI
Title
Weaver Show Posts <= 1.8.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Additional Classes to Wrap Posts' Widget Setting
Summary
The Weaver Show Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'add_class' parameter in all versions up to, and including, 1.8.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This primarily affects multisite installations where Administrators do not have the unfiltered_html capability.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wpweaver | Weaver Show Posts |
Affected:
0 , ≤ 1.8.1
(semver)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-2121",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-24T13:58:19.455475Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T13:58:28.389Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Weaver Show Posts",
"vendor": "wpweaver",
"versions": [
{
"lessThanOrEqual": "1.8.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Muqsith Barru"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Weaver Show Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027add_class\u0027 parameter in all versions up to, and including, 1.8.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This primarily affects multisite installations where Administrators do not have the unfiltered_html capability."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/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": "2026-04-08T17:28:48.293Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e0d525ab-a86d-4750-9d16-731cbc0a626e?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/trunk/includes/posts-widgets.php#L32"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/tags/1.8.1/includes/posts-widgets.php#L32"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/trunk/includes/posts-widgets.php#L45"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/tags/1.8.1/includes/posts-widgets.php#L45"
},
{
"url": "https://youtu.be/kbSqUuEAyho"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-25T21:25:04.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-03-20T15:17:17.000Z",
"value": "Disclosed"
}
],
"title": "Weaver Show Posts \u003c= 1.8.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via \u0027Additional Classes to Wrap Posts\u0027 Widget Setting"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-2121",
"datePublished": "2026-03-21T03:27:10.972Z",
"dateReserved": "2026-02-06T14:51:04.441Z",
"dateUpdated": "2026-04-08T17:28:48.293Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2023-1404 (GCVE-0-2023-1404)
Vulnerability from nvd – Published: 2023-06-09 05:33 – Updated: 2026-04-08 17:21
VLAI
Title
Weaver Show Posts <= 1.6 - Authenticated(Contributor+) Stored Cross-Site Scripting via Display Name
Summary
The Weaver Show Posts Plugin for WordPress is vulnerable to stored Cross-Site Scripting due to insufficient escaping of the profile display name in versions up to, and including, 1.6. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wpweaver | Weaver Show Posts |
Affected:
0 , ≤ 1.6
(semver)
|
Credits
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T05:49:11.278Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c8647c44-4879-4895-bd07-19f7d62a7326?source=cve"
},
{
"tags": [
"x_transferred"
],
"url": "https://plugins.trac.wordpress.org/browser/show-posts/tags/1.6/includes/atw-showposts-sc.php#L368"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-1404",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-11-23T13:13:21.651655Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-11-23T13:18:21.680Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Weaver Show Posts",
"vendor": "wpweaver",
"versions": [
{
"lessThanOrEqual": "1.6",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Alex Thomas"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Weaver Show Posts Plugin for WordPress is vulnerable to stored Cross-Site Scripting due to insufficient escaping of the profile display name in versions up to, and including, 1.6. This makes it possible for authenticated attackers with contributor-level and above permissions 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": "2026-04-08T17:21:33.781Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c8647c44-4879-4895-bd07-19f7d62a7326?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/tags/1.6/includes/atw-showposts-sc.php#L368"
},
{
"url": "https://www.wordfence.com/blog/2023/04/hiding-in-plain-sight-cross-site-scripting-vulnerabilities-patched-in-weaver-products/"
}
],
"timeline": [
{
"lang": "en",
"time": "2023-04-01T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "Weaver Show Posts \u003c= 1.6 - Authenticated(Contributor+) Stored Cross-Site Scripting via Display Name"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2023-1404",
"datePublished": "2023-06-09T05:33:33.172Z",
"dateReserved": "2023-03-14T17:37:30.276Z",
"dateUpdated": "2026-04-08T17:21:33.781Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-2121 (GCVE-0-2026-2121)
Vulnerability from cvelistv5 – Published: 2026-03-21 03:27 – Updated: 2026-04-08 17:28
VLAI
Title
Weaver Show Posts <= 1.8.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Additional Classes to Wrap Posts' Widget Setting
Summary
The Weaver Show Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'add_class' parameter in all versions up to, and including, 1.8.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This primarily affects multisite installations where Administrators do not have the unfiltered_html capability.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wpweaver | Weaver Show Posts |
Affected:
0 , ≤ 1.8.1
(semver)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-2121",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-24T13:58:19.455475Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T13:58:28.389Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Weaver Show Posts",
"vendor": "wpweaver",
"versions": [
{
"lessThanOrEqual": "1.8.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Muqsith Barru"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Weaver Show Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027add_class\u0027 parameter in all versions up to, and including, 1.8.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This primarily affects multisite installations where Administrators do not have the unfiltered_html capability."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/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": "2026-04-08T17:28:48.293Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e0d525ab-a86d-4750-9d16-731cbc0a626e?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/trunk/includes/posts-widgets.php#L32"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/tags/1.8.1/includes/posts-widgets.php#L32"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/trunk/includes/posts-widgets.php#L45"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/tags/1.8.1/includes/posts-widgets.php#L45"
},
{
"url": "https://youtu.be/kbSqUuEAyho"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-25T21:25:04.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-03-20T15:17:17.000Z",
"value": "Disclosed"
}
],
"title": "Weaver Show Posts \u003c= 1.8.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via \u0027Additional Classes to Wrap Posts\u0027 Widget Setting"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-2121",
"datePublished": "2026-03-21T03:27:10.972Z",
"dateReserved": "2026-02-06T14:51:04.441Z",
"dateUpdated": "2026-04-08T17:28:48.293Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2023-1404 (GCVE-0-2023-1404)
Vulnerability from cvelistv5 – Published: 2023-06-09 05:33 – Updated: 2026-04-08 17:21
VLAI
Title
Weaver Show Posts <= 1.6 - Authenticated(Contributor+) Stored Cross-Site Scripting via Display Name
Summary
The Weaver Show Posts Plugin for WordPress is vulnerable to stored Cross-Site Scripting due to insufficient escaping of the profile display name in versions up to, and including, 1.6. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wpweaver | Weaver Show Posts |
Affected:
0 , ≤ 1.6
(semver)
|
Credits
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T05:49:11.278Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c8647c44-4879-4895-bd07-19f7d62a7326?source=cve"
},
{
"tags": [
"x_transferred"
],
"url": "https://plugins.trac.wordpress.org/browser/show-posts/tags/1.6/includes/atw-showposts-sc.php#L368"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-1404",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-11-23T13:13:21.651655Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-11-23T13:18:21.680Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Weaver Show Posts",
"vendor": "wpweaver",
"versions": [
{
"lessThanOrEqual": "1.6",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Alex Thomas"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Weaver Show Posts Plugin for WordPress is vulnerable to stored Cross-Site Scripting due to insufficient escaping of the profile display name in versions up to, and including, 1.6. This makes it possible for authenticated attackers with contributor-level and above permissions 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": "2026-04-08T17:21:33.781Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c8647c44-4879-4895-bd07-19f7d62a7326?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/show-posts/tags/1.6/includes/atw-showposts-sc.php#L368"
},
{
"url": "https://www.wordfence.com/blog/2023/04/hiding-in-plain-sight-cross-site-scripting-vulnerabilities-patched-in-weaver-products/"
}
],
"timeline": [
{
"lang": "en",
"time": "2023-04-01T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "Weaver Show Posts \u003c= 1.6 - Authenticated(Contributor+) Stored Cross-Site Scripting via Display Name"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2023-1404",
"datePublished": "2023-06-09T05:33:33.172Z",
"dateReserved": "2023-03-14T17:37:30.276Z",
"dateUpdated": "2026-04-08T17:21:33.781Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}