{"schemaVersion":3,"id":"CVE-2026-7718","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability was identified in Totolink WA300 5.2cu.7112_B20190227. Impacted is the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument webWlanIdx leads to command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.","dates":{"published":"2026-05-04T01:15:17.037Z","modified":"2026-05-05T00:53:15.330Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"CVE.org","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":5.3,"severity":"medium","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":6.3,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"CVE.org","score":6.5,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":2.1,"severity":"low","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.5,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01768,"percentile":0.77899,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.8520000000000002,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00916},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.01768,"percentile":0.77899}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00916,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01768,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.01768,"percentile":0.77899}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_D730D9D357F26C9D","name":"Exploit Reference (lavender-bicycle-a5a.notion.site)","source":"reference","url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-WA300-setWebWlanIdx-34553a41781f800ab40ae0c3d68c78a6?pvs=73","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')","description":"The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/74.html"},{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command ('Command Injection')","description":"The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/77.html"}],"affected":[{"vendor":"totolink","product":"wa300_firmware","name":"wa300 firmware","label":"wa300_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"5.2cu.7112_B20190227","noFixRecorded":false,"fixedIn":null}],"versionsText":"5.2cu.7112_B20190227","eol":null,"hubHref":"/vendor/totolink/wa300"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://vuldb.com/vuln/360894","label":"vuldb.com/vuln/360894","hostname":"vuldb.com","tags":["VDB Entry","Technical Description"]},{"url":"https://vuldb.com/vuln/360894/cti","label":"vuldb.com/vuln/360894/cti","hostname":"vuldb.com","tags":["Signature","Permissions Required"]},{"url":"https://vuldb.com/submit/807196","label":"vuldb.com/submit/807196","hostname":"vuldb.com","tags":["Third Party Advisory"]},{"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-WA300-setWebWlanIdx-34553a41781f800ab40ae0c3d68c78a6?pvs=73","label":"lavender-bicycle-a5a.notion.site/TOTOLINK-WA300-setWebWlanIdx-34553a41781f800ab40ae0c3d68c78a6","hostname":"lavender-bicycle-a5a.notion.site","tags":["Exploit"]},{"url":"https://www.totolink.net/","label":"www.totolink.net","hostname":"www.totolink.net","tags":["Product"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-05-04T01:15:17.037Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-05-05T00:53:15.330Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":36,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T16:44:31.101Z","stale":false,"partial":false}}