fkie_cve-2021-27889
Vulnerability from fkie_nvd
Published
2021-03-15 17:15
Modified
2024-11-21 05:58
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
Cross-site Scripting (XSS) vulnerability in MyBB before 1.8.26 via Nested Auto URL when parsing messages.
References
cve@mitre.orghttp://packetstormsecurity.com/files/161908/MyBB-1.8.25-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
cve@mitre.orghttps://blog.sonarsource.com/mybb-remote-code-execution-chainExploit, Third Party Advisory
cve@mitre.orghttps://github.com/mybb/mybb/security/advisories/GHSA-xhj7-3349-mqcmPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/161908/MyBB-1.8.25-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://blog.sonarsource.com/mybb-remote-code-execution-chainExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mybb/mybb/security/advisories/GHSA-xhj7-3349-mqcmPatch, Third Party Advisory
Impacted products
Vendor Product Version
mybb mybb *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "E92578FF-AAA5-4F8F-8D78-0662DB9BB02C",
                     versionEndExcluding: "1.8.26",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "Cross-site Scripting (XSS) vulnerability in MyBB before 1.8.26 via Nested Auto URL when parsing messages.",
      },
      {
         lang: "es",
         value: "Una vulnerabilidad de tipo Cross-site Scripting (XSS) en MyBB versiones anteriores a  1.8.26 a través de Nested Auto URL cuando se analizan los mensajes",
      },
   ],
   id: "CVE-2021-27889",
   lastModified: "2024-11-21T05:58:42.617",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "MEDIUM",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "NONE",
               baseScore: 4.3,
               confidentialityImpact: "NONE",
               integrityImpact: "PARTIAL",
               vectorString: "AV:N/AC:M/Au:N/C:N/I:P/A:N",
               version: "2.0",
            },
            exploitabilityScore: 8.6,
            impactScore: 2.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: true,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "NONE",
               baseScore: 6.1,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "LOW",
               integrityImpact: "LOW",
               privilegesRequired: "NONE",
               scope: "CHANGED",
               userInteraction: "REQUIRED",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
               version: "3.1",
            },
            exploitabilityScore: 2.8,
            impactScore: 2.7,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2021-03-15T17:15:22.517",
   references: [
      {
         source: "cve@mitre.org",
         tags: [
            "Exploit",
            "Third Party Advisory",
            "VDB Entry",
         ],
         url: "http://packetstormsecurity.com/files/161908/MyBB-1.8.25-Remote-Command-Execution.html",
      },
      {
         source: "cve@mitre.org",
         tags: [
            "Exploit",
            "Third Party Advisory",
         ],
         url: "https://blog.sonarsource.com/mybb-remote-code-execution-chain",
      },
      {
         source: "cve@mitre.org",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://github.com/mybb/mybb/security/advisories/GHSA-xhj7-3349-mqcm",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Exploit",
            "Third Party Advisory",
            "VDB Entry",
         ],
         url: "http://packetstormsecurity.com/files/161908/MyBB-1.8.25-Remote-Command-Execution.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Exploit",
            "Third Party Advisory",
         ],
         url: "https://blog.sonarsource.com/mybb-remote-code-execution-chain",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://github.com/mybb/mybb/security/advisories/GHSA-xhj7-3349-mqcm",
      },
   ],
   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-79",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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