{"id":"CVE-2016-20034","state":"PUBLISHED","title":"Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit","description":"Wowza Streaming Engine 4.5.0 contains a privilege escalation vulnerability that allows authenticated read-only users to elevate privileges to administrator by manipulating POST parameters. Attackers can send POST requests to the user edit endpoint with accessLevel set to 'admin' and advUser parameters set to 'true' and 'on' to gain administrative access.","publishedAt":"2026-03-15T18:34:22.034Z","updatedAt":"2026-03-16T14:30:30.300Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["Wowza Media Systems, LLC. Wowza Streaming Engine"],"affected":[{"vendor":"Wowza Media Systems, LLC.","product":"Wowza Streaming Engine","versions":[{"version":"4.5.0","status":"affected"}]}],"references":["https://www.exploit-db.com/exploits/40133","http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5340.php","https://www.vulncheck.com/advisories/wowza-streaming-engine-privilege-escalation-via-user-edit"],"weaknesses":["CWE-352"],"ingestedAt":"2026-10-29T19:42:36.310Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2016/20xxx/CVE-2016-20034.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2016-20034","state":"PUBLISHED","datePublished":"2026-03-15T18:34:22.034Z","dateUpdated":"2026-03-16T14:30:30.300Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-03-15T18:22:05.054Z"},"containers":{"cna":{"title":"Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit","descriptions":[{"lang":"en","value":"Wowza Streaming Engine 4.5.0 contains a privilege escalation vulnerability that allows authenticated read-only users to elevate privileges to administrator by manipulating POST parameters. Attackers can send POST requests to the user edit endpoint with accessLevel set to 'admin' and advUser parameters set to 'true' and 'on' to gain administrative access."}],"affected":[{"vendor":"Wowza Media Systems, LLC.","product":"Wowza Streaming Engine","versions":[{"version":"4.5.0","status":"affected"}]}],"references":[{"url":"https://www.exploit-db.com/exploits/40133","name":"ExploitDB-40133","tags":["exploit"]},{"url":"http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5340.php","name":"Vulnerability Advisory","tags":["vendor-advisory"]},{"url":"https://www.vulncheck.com/advisories/wowza-streaming-engine-privilege-escalation-via-user-edit","name":"VulnCheck Advisory: Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-352","lang":"en","description":"Cross-Site Request Forgery (CSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-03-15T18:34:22.034Z"},"datePublic":"2016-07-20T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:wowza:streaming_engine:4.5.0:*:*:*:*:*:*:*"}]}]}],"credits":[{"lang":"en","value":"LiquidWorm as Gjoko Krstic of Zero Science Lab","type":"finder"}],"x_generator":{"engine":"vulncheck"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2016-20034","role":"CISA Coordinator","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-03-16T14:18:57.139999Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-16T14:30:30.300Z"}}]}}}