{"schemaVersion":3,"id":"CVE-2025-59788","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.","dates":{"published":"2025-12-04T00:00:00.000Z","modified":"2025-12-11T15:04:25.726Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.4,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00302,"percentile":0.21564,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00302},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00302,"percentile":0.21564}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00302,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00302,"percentile":0.21564}]},"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_8A7B3F099CFB39FA","name":"Exploit Reference (redteam-pentesting.de)","source":"reference","url":"https://www.redteam-pentesting.de/en/advisories/rt-sa-2025-003/","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-749","name":"Exposed Dangerous Method or Function","description":"The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"Low","url":"https://cwe.mitre.org/data/definitions/749.html"},{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","description":"The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/79.html"}],"affected":[{"vendor":"nextcloud","product":"nextcloud","name":"nextcloud","label":"nextcloud","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 22.2.10.33","noFixRecorded":false,"fixedIn":null},{"text":"≥ 23, < 23.0.12.29","noFixRecorded":false,"fixedIn":null},{"text":"≥ 24, < 24.0.12.28","noFixRecorded":false,"fixedIn":null},{"text":"≥ 25, < 25.0.13.23","noFixRecorded":false,"fixedIn":null},{"text":"≥ 26, < 26.0.13.20","noFixRecorded":false,"fixedIn":null},{"text":"≥ 27, < 27.1.11.20","noFixRecorded":false,"fixedIn":null},{"text":"≥ 28, < 28.0.14.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 29, < 29.0.16.8","noFixRecorded":false,"fixedIn":null},{"text":"≥ 30, < 30.0.17","noFixRecorded":false,"fixedIn":null},{"text":"≥ 31, < 31.0.10","noFixRecorded":false,"fixedIn":null},{"text":"≥ 32, < 32.0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 22.2.10.33 | ≥ 23, < 23.0.12.29 | ≥ 24, < 24.0.12.28 | ≥ 25, < 25.0.13.23 | ≥ 26, < 26.0.13.20 | ≥ 27, < 27.1.11.20 | ≥ 28, < 28.0.14.11 | ≥ 29, < 29.0.16.8 | ≥ 30, < 30.0.17 | ≥ 31, < 31.0.10 | ≥ 32, < 32.0.1","eol":null,"hubHref":"/vendor/nextcloud/nextcloud"},{"vendor":"nextcloud","product":"nextcloud_server","name":"nextcloud server","label":"nextcloud_server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 30.0.0, < 30.0.17","noFixRecorded":false,"fixedIn":null},{"text":"≥ 31.0.0, < 31.0.10","noFixRecorded":false,"fixedIn":null},{"text":"≥ 32.0.0, < 32.0.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 22.0.0, < 22.2.10.33","noFixRecorded":false,"fixedIn":null},{"text":"≥ 23.0.0, < 23.0.12.29","noFixRecorded":false,"fixedIn":null},{"text":"≥ 24.0.0, < 24.0.12.28","noFixRecorded":false,"fixedIn":null},{"text":"≥ 25.0.0, < 25.0.13.23","noFixRecorded":false,"fixedIn":null},{"text":"≥ 26.0.0, < 26.0.13.20","noFixRecorded":false,"fixedIn":null},{"text":"≥ 27.0.0, < 27.1.11.20","noFixRecorded":false,"fixedIn":null},{"text":"≥ 28.0.0, < 28.0.14.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 29.0.0, < 29.0.16.8","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 30.0.0, < 30.0.17 | ≥ 31.0.0, < 31.0.10 | ≥ 32.0.0, < 32.0.1 | ≥ 22.0.0, < 22.2.10.33 | ≥ 23.0.0, < 23.0.12.29 | ≥ 24.0.0, < 24.0.12.28 | ≥ 25.0.0, < 25.0.13.23 | ≥ 26.0.0, < 26.0.13.20 | ≥ 27.0.0, < 27.1.11.20 | ≥ 28.0.0, < 28.0.14.11 | ≥ 29.0.0, < 29.0.16.8","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"nextcloud","label":"Nextcloud","category":"server-app"}},"hubHref":"/vendor/nextcloud/nextcloud_server"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://nextcloud.com","label":"nextcloud.com","hostname":"nextcloud.com","tags":["Product"]},{"url":"https://www.redteam-pentesting.de/en/advisories/rt-sa-2025-003/","label":"www.redteam-pentesting.de/en/advisories/rt-sa-2025-003/","hostname":"www.redteam-pentesting.de","tags":["Exploit","Third Party Advisory"]},{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-24wp-p865-7j4r","label":"github.com/nextcloud/security-advisories/security/advisories/GHSA-24wp-p865-7j4r","hostname":"github.com","tags":["Mitigation","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2025-12-04T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-12-11T15:04:25.726Z","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":"2026-10-20T07:31:01.295Z","stale":false,"partial":false}}