Vulnerability-Lookup

CVE-2026-8698 (GCVE-0-2026-8698)

Vulnerability from cvelistv5 – Published: 2026-05-27 05:31 – Updated: 2026-05-27 10:40

Title

Cryptocurrency Prijsvergelijking Widget <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'width' Shortcode Attribute

Summary

The Cryptocurrency Prijsvergelijking Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting in version 1.0. This is due to insufficient output escaping in the as_get_coin_shortcode() function, which renders the 'width' (and 'height') shortcode attribute directly into the style attribute of an <iframe> element without applying any escaping function such as esc_attr(). An attacker-controlled value like '100px;"onload="alert(1)" x="' terminates the style attribute prematurely and injects an arbitrary HTML attribute into the iframe tag. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Severity

6.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-27 10:18 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Wordfence mitre root

References

3 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/crypto…
https://plugins.trac.wordpress.org/browser/crypto…

Impacted products

1 product

Vendor	Product	Version	CPE status
cryptoprijzen	Cryptocurrency Prijsvergelijking Widget	Affected: 0 , ≤ 1.0 (semver)	guessed

Credits

nail majdeddine

Show details on NVD website

JSON

To clipboard

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CNVD-2026-25433

Vulnerability from cnvd - Published: 2026-06-26

Title

WordPress插件Cryptocurrency Prijsvergelijking Widget跨站脚本漏洞

Description

WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress插件Cryptocurrency Prijsvergelijking Widget存在跨站脚本漏洞，该漏洞源于as_get_coin_shortcode函数输出转义不足，攻击者可利用该漏洞注入任意Web脚本。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://wordpress.org/plugins/cryptocurrency-prijsvergelijking-widget/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-8698

Impacted products

Name
WordPress Cryptocurrency Prijsvergelijking Widget plugin v1.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-8698",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-8698"
    }
  },
  "description": "WordPress\u662f\u4e00\u5957\u4f7f\u7528PHP\u8bed\u8a00\u5f00\u53d1\u7684\u535a\u5ba2\u5e73\u53f0\u3002\u8be5\u5e73\u53f0\u5177\u6709\u5728\u57fa\u4e8ePHP\u548cMySQL\u7684\u670d\u52a1\u5668\u4e0a\u67b6\u8bbe\u4e2a\u4eba\u535a\u5ba2\u7f51\u7ad9\u7684\u529f\u80fd\u3002WordPress plugin\u662f\u4e00\u4e2a\u5e94\u7528\u63d2\u4ef6\u3002\n\nWordPress\u63d2\u4ef6Cryptocurrency Prijsvergelijking Widget\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eas_get_coin_shortcode\u51fd\u6570\u8f93\u51fa\u8f6c\u4e49\u4e0d\u8db3\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6ce8\u5165\u4efb\u610fWeb\u811a\u672c\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://wordpress.org/plugins/cryptocurrency-prijsvergelijking-widget/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-25433",
  "openTime": "2026-06-26",
  "products": {
    "product": "WordPress Cryptocurrency Prijsvergelijking Widget plugin v1.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-8698",
  "serverity": "\u4e2d",
  "submitTime": "2026-05-29",
  "title": "WordPress\u63d2\u4ef6Cryptocurrency Prijsvergelijking Widget\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e"
}

FKIE_CVE-2026-8698

Vulnerability from fkie_nvd - Published: 2026-05-27 07:16 - Updated: 2026-06-17 11:04

Severity

6.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Summary

References

	URL	Tags
	security@wordfence.com	https://plugins.trac.wordpress.org/browser/cryptocurrency-prijsvergelijking-widget/trunk/functions.php#L138
	security@wordfence.com	https://plugins.trac.wordpress.org/browser/cryptocurrency-prijsvergelijking-widget/trunk/functions.php#L157
	security@wordfence.com	https://www.wordfence.com/threat-intel/vulnerabilities/id/058e47cd-55c8-48b3-8aa6-ef299886061d?source=cve

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
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    {
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        {
          "defaultStatus": "unaffected",
          "product": "Cryptocurrency Prijsvergelijking Widget",
          "vendor": "cryptoprijzen",
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              "status": "affected",
              "version": "0",
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            }
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    }
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    }
  ],
  "id": "CVE-2026-8698",
  "lastModified": "2026-06-17T11:04:18.123",
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          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
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        "impactScore": 2.7,
        "source": "security@wordfence.com",
        "type": "Secondary"
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  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/cryptocurrency-prijsvergelijking-widget/trunk/functions.php#L138"
    },
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  ]
}

GHSA-3R7W-PVVH-CGGQ

Vulnerability from github – Published: 2026-05-27 09:31 – Updated: 2026-05-27 09:31

Details

The Cryptocurrency Prijsvergelijking Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting in version 1.0. This is due to insufficient output escaping in the as_get_coin_shortcode() function, which renders the 'width' (and 'height') shortcode attribute directly into the style attribute of an element without applying any escaping function such as esc_attr(). An attacker-controlled value like '100px;"onload="alert(1)" x="' terminates the style attribute prematurely and injects an arbitrary HTML attribute into the iframe tag. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Severity

6.4 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-8698"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T07:16:14Z",
    "severity": "MODERATE"
  },
  "details": "The Cryptocurrency Prijsvergelijking Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting in version 1.0. This is due to insufficient output escaping in the as_get_coin_shortcode() function, which renders the \u0027width\u0027 (and \u0027height\u0027) shortcode attribute directly into the style attribute of an \u003ciframe\u003e element without applying any escaping function such as esc_attr(). An attacker-controlled value like \u0027100px;\"onload=\"alert(1)\" x=\"\u0027 terminates the style attribute prematurely and injects an arbitrary HTML attribute into the iframe tag. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.",
  "id": "GHSA-3r7w-pvvh-cggq",
  "modified": "2026-05-27T09:31:12Z",
  "published": "2026-05-27T09:31:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8698"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/cryptocurrency-prijsvergelijking-widget/trunk/functions.php#L138"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/cryptocurrency-prijsvergelijking-widget/trunk/functions.php#L157"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/058e47cd-55c8-48b3-8aa6-ef299886061d?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

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.

Action not permitted

CVE-2026-8698 (GCVE-0-2026-8698)

CNVD-2026-25433

FKIE_CVE-2026-8698

GHSA-3R7W-PVVH-CGGQ

Tags

Sightings

Nomenclature

Related by attack behaviour