{"id":"CVE-2026-26378","aliases":["EUVD-2026-34169","GHSA-j9m8-fw2w-frcq"],"status":"published","title":"Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute...","description":"Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute arbitrary code via file upload function in Invoice features","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.003,"percentile":0.22958,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-06-03T00:00:00Z","modified":"2026-10-28T02:30:51Z","products":[{"vendor":"koha","product":"koha"}],"references":[{"url":"https://github.com/Koha-Community/Koha","tags":["Product","package"]},{"url":"https://g03m0n.github.io","tags":["Third Party Advisory","web"]},{"url":"https://g03m0n.github.io/posts/cve-2026-26378/","tags":["exploit","Exploit","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26378","tags":["advisory"]},{"url":"https://g03m0n.github.io/posts/cve-2026-26378"},{"url":"https://github.com/advisories/GHSA-j9m8-fw2w-frcq"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26378.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-26378","description":"Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute arbitrary code via file upload function in Invoice features","status":"published","published":"2026-06-03T00:00:00Z","modified":"2026-06-04T12:29:08.564Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:38:32.13011Z"}],"euvd":[{"id":"EUVD-2026-34169","description":"Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute arbitrary code via file upload function in Invoice features","status":"published","published":"2026-06-03T00:00:00Z","modified":"2026-06-04T12:29:08Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:20:53.780241Z"}],"ghsa":[{"id":"GHSA-j9m8-fw2w-frcq","title":"Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute...","description":"Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute arbitrary code via file upload function in Invoice features","status":"published","published":"2026-06-03T21:30:29Z","modified":"2026-06-04T15:31:35Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:08:33.048787Z"}],"nvd":[{"id":"CVE-2026-26378","description":"Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute arbitrary code via file upload function in Invoice features","status":"published","published":"2026-06-03T19:16:25.4Z","modified":"2026-07-22T20:10:00.127Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:22.022466Z"}],"osv":[{"id":"CVE-2026-26378","description":"Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute arbitrary code via file upload function in Invoice features","status":"published","published":"2026-06-03T00:00:00Z","modified":"2026-10-28T02:30:51.535161125Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:59.80315Z"}]}}