CVE-2026-103687 (GCVE-0-2026-103687)

Vulnerability from cvelistv5 – Published: 2026-10-01 14:30 – Updated: 2026-10-01 15:07 X_Open Source
VLAI
Title
rhukster dom-sanitizer SVG Sanitization DOMSanitizer.php url incomplete blacklist
Summary
A vulnerability has been found in rhukster dom-sanitizer up to 1.0.15. The affected element is the function url of the file src/DOMSanitizer.php of the component SVG Sanitization. Such manipulation leads to incomplete blacklist. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.0.16 is sufficient to fix this issue. The name of the patch is 139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a. Upgrading the affected component is recommended.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:06 UTC
CWE
  • CWE-184 - Incomplete Blacklist
  • CWE-183 - Permissive List of Allowed Inputs
Impacted products
Vendor Product Version
rhukster dom-sanitizer Affected: 1.0.0
Affected: 1.0.1
Affected: 1.0.2
Affected: 1.0.3
Affected: 1.0.4
Affected: 1.0.5
Affected: 1.0.6
Affected: 1.0.7
Affected: 1.0.8
Affected: 1.0.9
Affected: 1.0.10
Affected: 1.0.11
Affected: 1.0.12
Affected: 1.0.13
Affected: 1.0.14
Affected: 1.0.15
Unaffected: 1.0.16
    cpe:2.3:a:rhukster:dom-sanitizer:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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                "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
                "version": "2.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-184",
                  "description": "Incomplete Blacklist",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-183",
                  "description": "Permissive List of Allowed Inputs",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-10-01T14:30:12.624Z",
            "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
            "shortName": "VulDB"
          },
          "references": [
            {
              "name": "VDB-412551 | rhukster dom-sanitizer SVG Sanitization DOMSanitizer.php url incomplete blacklist",
              "tags": [
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://vuldb.com/vuln/412551"
            },
            {
              "name": "VDB-412551 | CTI Indicators (IOB, IOC, TTP, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
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            },
            {
              "name": "CVE-2026-103687 | CVE Analysis and Report",
              "tags": [
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              "url": "https://vuldb.com/cve/CVE-2026-103687"
            },
            {
              "name": "Submit #958345 | rhukster dom-sanitizer \u003c= 1.0.15 Improper Input Validation",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/submit/958345"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-cjfg-j8jp-5xvc"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/rhukster/dom-sanitizer/commit/139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a"
            },
            {
              "tags": [
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              ],
              "url": "https://github.com/rhukster/dom-sanitizer/releases/tag/1.0.16"
            },
            {
              "tags": [
                "product"
              ],
              "url": "https://github.com/rhukster/dom-sanitizer/"
            }
          ],
          "tags": [
            "x_open-source"
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-10-01T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-10-01T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-10-01T11:36:45.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "rhukster dom-sanitizer SVG Sanitization DOMSanitizer.php url incomplete blacklist",
          "x_generator": [
            "VulDB PVTS v202610"
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-103687",
        "datePublished": "2026-10-01T14:30:12.624Z",
        "dateReserved": "2026-10-01T09:31:35.763Z",
        "dateUpdated": "2026-10-01T15:07:06.705Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.

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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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