{"id":"CVE-2026-24479","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-24479","generatedAt":"2026-10-28T03:31:47.616Z","title":"Attackers can craft a malicious ZIP file containing files with path traversal sequences (e.g., ../../shell.php).","description":"HUSTOF is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training. Prior to version 26.01.24, the problem_import_qduoj.php and problem_import_hoj.php modules fail to properly sanitize filenames within uploaded ZIP archives. Attackers can craft a malicious ZIP file containing files with path traversal sequences (e.g., ../../shell.php). When extracted by the server, this allows writing files to arbitrary locations in the web root, leading to Remote Code Execution (RCE). Version 26.01.24 contains a fix for the issue.","published":"2026-01-27T01:16:02.000Z","lastModified":"2026-06-17T10:23:08.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":9.3,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-22"],"affected":["hustoj/hustoj"],"epss":{"score":0.08133,"percentile":0.94806,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2026-04-30","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":52539,"kind":"exploit","title":"HUSTOJ Zip-Slip v26.01.24 -  RCE","url":"https://www.exploit-db.com/exploits/52539","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/webapps/52539.rb","file":"exploits/multiple/webapps/52539.rb","published":"2026-04-30","added":"2026-04-30","updated":"2026-04-30","author":"Marshall Whittaker","type":"webapps","platform":"multiple","port":null,"verified":false,"codes":["CVE-2026-24479"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB and the impact is critical, while EPSS rates exploitation at 8.1%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"https://github.com/zhblue/hustoj/commit/902bd09e6d0011fe89cd84d4236899314b33101f","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/zhblue/hustoj/security/advisories/GHSA-xmgg-2rw4-7fxj","tags":["Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-24479","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}