CVE-2023-45362 (GCVE-0-2023-45362)

Vulnerability from cvelistv5 – Published: 2023-11-03 00:00 – Updated: 2025-11-04 17:12
VLAI
Summary
An issue was discovered in DifferenceEngine.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. diff-multi-sameuser (aka "X intermediate revisions by the same user not shown") ignores username suppression. This is an information leak.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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          "value": "An issue was discovered in DifferenceEngine.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. diff-multi-sameuser (aka \"X intermediate revisions by the same user not shown\") ignores username suppression. This is an information leak."
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    "datePublished": "2023-11-03T00:00:00.000Z",
    "dateReserved": "2023-10-09T00:00:00.000Z",
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        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6A920574-0C59-4036-9878-C5A39EF82AA1",
                    "versionEndExcluding": "1.35.12",
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            "lang": "en",
            "value": "An issue was discovered in DifferenceEngine.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. diff-multi-sameuser (aka \"X intermediate revisions by the same user not shown\") ignores username suppression. This is an information leak."
          },
          {
            "lang": "es",
            "value": "Se descubri\u00f3 un problema en DifferenceEngine.php en MediaWiki antes de 1.35.12, 1.36.x hasta 1.39.x antes de 1.39.5 y 1.40.x antes de 1.40.1. diff-multi-sameuser (tambi\u00e9n conocido como \"X revisiones intermedias del mismo usuario no mostradas\") ignora la supresi\u00f3n del nombre de usuario. Esta es una filtraci\u00f3n de informaci\u00f3n."
          }
        ],
        "id": "CVE-2023-45362",
        "lastModified": "2026-06-17T06:28:41.740",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
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              "exploitabilityScore": 2.8,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
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        "published": "2023-11-03T05:15:30.773",
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          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/"
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          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
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        "vulnStatus": "Modified",
        "weaknesses": [
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      "current_release_date": "2025-11-21T10:19:00+00:00",
      "cve": "CVE-2023-45362",
      "id": "CVE-2023-45362",
      "initial_release_date": "2023-10-12T00:00:00+00:00",
      "product_status:known_affected": "3",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "mediawiki: diff-multi-sameuser (\"X intermediate revisions by the same user not shown\") ignores username suppression",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-45362.json",
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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.


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.