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2 vulnerabilities found for Weaver Show Posts by wpweaver

CVE-2026-2121 (GCVE-0-2026-2121)
Vulnerability from cvelistv5
Published
2026-03-21 03:27
Modified
2026-04-08 17:28
Severity ?
4.4 (Medium) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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.
References
Impacted products
Vendor Product Version
wpweaver Weaver Show Posts Version: 0   ≤ 1.8.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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                "timestamp": "2026-03-24T13:58:19.455475Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "value": "Muqsith Barru"
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          "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."
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        },
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          "url": "https://plugins.trac.wordpress.org/browser/show-posts/trunk/includes/posts-widgets.php#L32"
        },
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          "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"
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          "time": "2026-03-20T15:17:17.000Z",
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      "title": "Weaver Show Posts \u003c= 1.8.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via \u0027Additional Classes to Wrap Posts\u0027 Widget Setting"
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}

CVE-2023-1404 (GCVE-0-2023-1404)
Vulnerability from cvelistv5
Published
2023-06-09 05:33
Modified
2026-04-08 17:21
Severity ?
6.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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.
References
Impacted products
Vendor Product Version
wpweaver Weaver Show Posts Version: 0   ≤ 1.6
 Create a notification for this product.
Show details on NVD website

To clipboard 

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        ],
        "title": "CVE Program Container"
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      "title": "Weaver Show Posts \u003c= 1.6 - Authenticated(Contributor+) Stored Cross-Site Scripting via Display Name"
    }
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