FKIE_CVE-2026-0668

Vulnerability from fkie_nvd - Published: 2026-01-07 18:15 - Updated: 2026-02-24 18:32
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki - VisualData Extension allows Regular Expression Exponential Blowup.This issue affects MediaWiki - VisualData Extension: 1.45.
References
c4f26cc8-17ff-4c99-b5e2-38fc1793eacchttps://gerrit.wikimedia.org/r/q/I4ff2737c9f0ba805267d1fc8296e7cff61241ee3Patch
c4f26cc8-17ff-4c99-b5e2-38fc1793eacchttps://gerrit.wikimedia.org/r/q/I893a9fca694a2613e29e149dea2d76d7f06063e5Patch
c4f26cc8-17ff-4c99-b5e2-38fc1793eacchttps://gerrit.wikimedia.org/r/q/Ie08d9a8ceb2c9a22a635cfc27964353f14072dbfPatch
c4f26cc8-17ff-4c99-b5e2-38fc1793eacchttps://gerrit.wikimedia.org/r/q/Ifbf9c2ade621226e14fe852f3217293772bf8bb8Patch
c4f26cc8-17ff-4c99-b5e2-38fc1793eacchttps://phabricator.wikimedia.org/T387008Exploit, Issue Tracking
Impacted products
Vendor Product Version
wikisphere visualdata -
mediawiki mediawiki 1.45.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wikisphere:visualdata:-:*:*:*:*:mediawiki:*:*",
              "matchCriteriaId": "AAD8093D-9F46-4862-A655-14560FD2297E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.45.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "EE14F82E-8C8A-43F0-9A96-D3767A62DFC8",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki - VisualData Extension allows Regular Expression Exponential Blowup.This issue affects MediaWiki - VisualData Extension: 1.45."
    }
  ],
  "id": "CVE-2026-0668",
  "lastModified": "2026-02-24T18:32:21.493",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-07T18:15:52.873",
  "references": [
    {
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "tags": [
        "Patch"
      ],
      "url": "https://gerrit.wikimedia.org/r/q/I4ff2737c9f0ba805267d1fc8296e7cff61241ee3"
    },
    {
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "tags": [
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      ],
      "url": "https://gerrit.wikimedia.org/r/q/I893a9fca694a2613e29e149dea2d76d7f06063e5"
    },
    {
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "tags": [
        "Patch"
      ],
      "url": "https://gerrit.wikimedia.org/r/q/Ie08d9a8ceb2c9a22a635cfc27964353f14072dbf"
    },
    {
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "tags": [
        "Patch"
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      "url": "https://gerrit.wikimedia.org/r/q/Ifbf9c2ade621226e14fe852f3217293772bf8bb8"
    },
    {
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "url": "https://phabricator.wikimedia.org/T387008"
    }
  ],
  "sourceIdentifier": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ],
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "type": "Secondary"
    }
  ]
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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