Vulnerability-Lookup

GHSA-38C9-3PHJ-GG36

Vulnerability from github – Published: 2026-10-22 03:33 – Updated: 2026-10-22 03:33

Details

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass. rcube_washtml inspected the SVG SMIL animation attributes to, from and values for URIs, but not by; so markup such as in an HTML message caused remote content to be loaded without the user's consent, disclosing the client IP address and confirming that the message was opened. Upstream fixed this in the commit “Fix remote-content blocker bypass via SVG SMIL by attribute”.

Severity

5.3 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-114729"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-184"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-22T03:16:38Z",
    "severity": "MODERATE"
  },
  "details": "Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass. rcube_washtml inspected the SVG SMIL animation attributes `to`, `from` and values for URIs, but not `by`; so markup such as in an HTML message caused remote content to be loaded without the user\u0027s consent, disclosing the client IP address and confirming that the message was opened. Upstream fixed this in the commit \u201cFix remote-content blocker bypass via SVG SMIL `by` attribute\u201d.",
  "id": "GHSA-38c9-3phj-gg36",
  "modified": "2026-10-22T03:33:49Z",
  "published": "2026-10-22T03:33:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114729"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/commit/2b6ff79d8b14f94b0ff04765b7f02dbfdfe98efa"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/commit/96d993b4ac57166a094b5774f4761e0b905d9a05"
    },
    {
      "type": "WEB",
      "url": "https://bugs.debian.org/1151279"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.20"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.5"
    },
    {
      "type": "WEB",
      "url": "https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-114729 (GCVE-0-2026-114729)

Vulnerability from cvelistv5 – Published: 2026-10-22 02:05 – Updated: 2026-10-22 02:05

Summary

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass. rcube_washtml inspected the SVG SMIL animation attributes `to`, `from` and values for URIs, but not `by`; so markup such as in an HTML message caused remote content to be loaded without the user's consent, disclosing the client IP address and confirming that the message was opened. Upstream fixed this in the commit “Fix remote-content blocker bypass via SVG SMIL `by` attribute”.

Severity

5.3 (Medium)


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

CWE

CWE-184 - Incomplete List of Disallowed Inputs

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2362 records in the last 180 days details

References

6 references

URL	Tags
https://bugs.debian.org/1151279	issue-trackingthird-party-advisory
https://github.com/roundcube/roundcubemail/commit…	patch
https://roundcube.net/news/2026/10/19/security-up…	vendor-advisoryrelease-notes
https://github.com/roundcube/roundcubemail/releas…	release-notespatch
https://github.com/roundcube/roundcubemail/releas…	release-notespatch
https://github.com/roundcube/roundcubemail/commit…	patch

Impacted products

1 product

Vendor	Product	Version
Roundcube	Webmail	Affected: 1.6.0 , < 1.6.20 (semver) Affected: 1.7.0 , < 1.7.5 (semver) cpe:2.3:a:roundcube:webmail:::::::: cpe:2.3:a:roundcube:webmail::::::::

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Webmail",
          "repo": "https://github.com/roundcube/roundcubemail/",
          "vendor": "Roundcube",
          "versions": [
            {
              "lessThan": "1.6.20",
              "status": "affected",
              "version": "1.6.0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.7.5",
              "status": "affected",
              "version": "1.7.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "1.6.20",
                  "versionStartIncluding": "1.6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "1.7.5",
                  "versionStartIncluding": "1.7.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass. rcube_washtml inspected the SVG SMIL animation attributes `to`, `from` and values for URIs, but not `by`; so markup such as in an HTML message caused remote content to be loaded without the user\u0027s consent, disclosing the client IP address and confirming that the message was opened. Upstream fixed this in the commit \u201cFix remote-content blocker bypass via SVG SMIL `by` attribute\u201d."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-184",
              "description": "CWE-184 Incomplete List of Disallowed Inputs",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-22T02:05:39.669Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "issue-tracking",
            "third-party-advisory"
          ],
          "url": "https://bugs.debian.org/1151279"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/roundcube/roundcubemail/commit/96d993b4ac57166a094b5774f4761e0b905d9a05"
        },
        {
          "tags": [
            "vendor-advisory",
            "release-notes"
          ],
          "url": "https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5"
        },
        {
          "tags": [
            "release-notes",
            "patch"
          ],
          "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.5"
        },
        {
          "tags": [
            "release-notes",
            "patch"
          ],
          "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.20"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/roundcube/roundcubemail/commit/2b6ff79d8b14f94b0ff04765b7f02dbfdfe98efa"
        }
      ],
      "x_generator": {
        "engine": "CVE-Request-form 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-114729",
    "datePublished": "2026-10-22T02:05:39.669Z",
    "dateReserved": "2026-10-22T02:05:39.353Z",
    "dateUpdated": "2026-10-22T02:05:39.669Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

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