CVE-2026-14921 (GCVE-0-2026-14921)

Vulnerability from cvelistv5 – Published: 2026-07-31 06:00 – Updated: 2026-07-31 19:40
VLAI
Title
Ultimate Addons for WPBakery Page Builder < 3.21.5 - Contributor+ Stored XSS via ult_buttons Shortcode
Summary
The Ultimate Addons for WPBakery Page Builder WordPress plugin before 3.21.5's shared link-rendering function, Ultimate_VC_Addons::uavc_link_init(),
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 19:39 UTC
CWE
Assigner
References
URL Tags
https://wpscan.com/vulnerability/4bebd9ff-87b6-45… exploitvdb-entrytechnical-description
Impacted products
Vendor Product Version CPE status
Unknown Ultimate Addons for WPBakery Page Builder Affected: 0 , < 3.21.5 (semver)
guessed Create a notification for this product.
Credits
Trần TIến WPScan
Show details on NVD website
To clipboard 

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              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
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                "timestamp": "2026-07-31T19:39:45.587958Z",
                "version": "2.0.3"
              },
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        ],
        "problemTypes": [
          {
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              {
                "cweId": "CWE-79",
                "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
                "lang": "en",
                "type": "CWE"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "product": "Ultimate Addons for WPBakery Page Builder",
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              "description": "CWE-79 Cross-Site Scripting (XSS)",
              "lang": "en",
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      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Ultimate Addons for WPBakery Page Builder \u003c 3.21.5 - Contributor+ Stored XSS via ult_buttons Shortcode",
      "x_generator": {
        "engine": "WPScan CVE Generator"
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    "datePublished": "2026-07-31T06:00:07.939Z",
    "dateReserved": "2026-07-07T08:03:28.990Z",
    "dateUpdated": "2026-07-31T19:40:51.550Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2",
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      "epss": "0.00149",
      "percentile": "0.04459"
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    "nvd": {
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          }
        ],
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        "lastModified": "2026-08-26T16:31:36.750",
        "metrics": {
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        "published": "2026-07-31T07:16:26.067",
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  }
}



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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

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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.


Detection rules are retrieved from Rulezet.


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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.