CVE-2026-48761 (GCVE-0-2026-48761)

Vulnerability from cvelistv5 – Published: 2026-07-14 19:21 – Updated: 2026-07-14 19:21
VLAI
Title
Symfony: HtmlSanitizer UrlAttributeSanitizer Misses URL Attributes on <object>, <applet>, <iframe>, <img> and the URL Inside <meta http-equiv="refresh"> content
Summary
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0 until 6.4.41, 7.4.13, and 8.0.13, UrlAttributeSanitizer::getSupportedAttributes() omitted URL-bearing attributes on <object>, <applet>, <iframe>, and <img>, and <meta http-equiv="refresh"> URLs inside content bypassed URL sanitization, allowing explicitly enabled elements or attributes to pass javascript: and similar payloads into sanitized output. This issue is fixed in versions 6.4.41, 7.4.13, and 8.0.13.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-1023 - Incomplete Comparison with Missing Factors
Assigner
References
Impacted products
Vendor Product Version
symfony symfony Affected: >= 6.1.0, < 6.4.41
Affected: >= 7.0.0-BETA1, < 7.4.13
Affected: >= 8.0.0-BETA1, < 8.0.13
Create a notification for this product.
symfony html-sanitizer Affected: >= 6.1.0, < 6.4.41
Affected: >= 7.0.0-BETA1, < 7.4.13
Affected: >= 8.0.0-BETA1, < 8.0.13
Create a notification for this product.
Show details on NVD website
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      "affected": [
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          "product": "symfony",
          "vendor": "symfony",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 6.1.0, \u003c 6.4.41"
            },
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            },
            {
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              "version": "\u003e= 8.0.0-BETA1, \u003c 8.0.13"
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            },
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              "status": "affected",
              "version": "\u003e= 7.0.0-BETA1, \u003c 7.4.13"
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            "privilegesRequired": "NONE",
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            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
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        "dateUpdated": "2026-07-14T19:21:26.582Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
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          "name": "https://github.com/symfony/symfony/security/advisories/GHSA-x5qj-865h-mgvm",
          "tags": [
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          ],
          "url": "https://github.com/symfony/symfony/security/advisories/GHSA-x5qj-865h-mgvm"
        },
        {
          "name": "https://github.com/symfony/symfony/commit/069a70f9f26e61e9de3b7f9a864a86ed24b36bd0",
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        },
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          "tags": [
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        }
      ],
      "source": {
        "advisory": "GHSA-x5qj-865h-mgvm",
        "discovery": "UNKNOWN"
      },
      "title": "Symfony: HtmlSanitizer UrlAttributeSanitizer Misses URL Attributes on \u003cobject\u003e, \u003capplet\u003e, \u003ciframe\u003e, \u003cimg\u003e and the URL Inside \u003cmeta http-equiv=\"refresh\"\u003e content"
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-48761",
    "datePublished": "2026-07-14T19:21:26.582Z",
    "dateReserved": "2026-05-22T19:39:05.356Z",
    "dateUpdated": "2026-07-14T19:21:26.582Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-07-15",
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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

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.