{"id":13543,"date":"2026-09-04T19:00:49","date_gmt":"2026-09-04T11:00:49","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-14480"},"modified":"2026-09-04T19:00:49","modified_gmt":"2026-09-04T11:00:49","slug":"cve-2026-14480","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-14480","title":{"rendered":"CVE-2026-14480 [CRITICAL] &#8211; OpenPLC Runtime v3 contains an authenticated arbitrary file write \nvulnerability in the le"},"content":{"rendered":"<p>OpenPLC Runtime v3 contains an authenticated arbitrary file write<br \/>\nvulnerability in the legacy web UI program\u2011upload workflow. The<br \/>\napplication stores an attacker\u2011supplied filename (prog_file) directly<br \/>\ninto the Programs.File database field and later uses this value as the<br \/>\ndestination path for an uploaded file without validating or restricting<br \/>\nthe path. Because Python os.path.join() honors attacker\u2011controlled<br \/>\nabsolute paths, an authenticated user can write arbitrary files anywhere<br \/>\n writable by the OpenPLC webserver process. In the default build<br \/>\npipeline, all C++ source files within the OpenPLC runtime core directory<br \/>\n are automatically compiled into the executable runtime binary. By<br \/>\nwriting a malicious .cpp file into this directory, an authenticated<br \/>\nattacker can escalate the arbitrary file write into arbitrary native<br \/>\ncode execution when the operator triggers a normal program compilation<br \/>\nand runtime start.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>OpenPLC Runtime v3 contains an authenticated arbitrary file write<br \/>\nvulnerability in the legacy web UI program\u2011upload workflow. The<br \/>\napplication stores an attacker\u2011supplied filename (prog_file) directl<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-13543","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/13543","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}