{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-1555 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-1555 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-1555 is a critical vulnerability in Owen WebStack, published on 15 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-1555 and fix it if it is affected.\n\nWhat it is: CVE-2026-1555 is a critical vulnerability in Owen WebStack, published on 15 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-1555 in the wild and no public exploit code.\n\nAffected product: Owen WebStack. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-1555/ (Markdown: https://insights.sbomify.com/CVE-2026-1555/index.md)","id":"CVE-2026-1555","markdown":"https://insights.sbomify.com/CVE-2026-1555/index.md","name":"CVE-2026-1555","record":{"aliases":["GHSA-5c49-p8m3-fjh3"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress theme","requires_auth":"none","summary":"Unauthenticated attackers can upload arbitrary files via the WebStack WordPress theme, potentially leading to remote code execution.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"The WebStack theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the io_img_upload() function in all versions up to, and including, 1.2024. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-04-17","github_poc":2,"max_poc_stars":9,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-04-17T22:03:58Z","kind":"github_poc","ref":"https://github.com/Nxploited/CVE-2026-1555","stars":9,"title":"WebStack \u003c= 1.2024 - Unauthenticated Arbitrary File Upload"},{"date":"2026-09-02T10:05:17Z","kind":"github_poc","ref":"https://github.com/katranSefa/CVE-2026-1555","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":false,"headline":"WebStack \u003c= 1.2024 - Unauthenticated Arbitrary File Upload","id":"CVE-2026-1555","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Information disclosure via file URI overwrite in File (Field) Paths","id":"CVE-2026-1556"},"packages":[],"prev":{"headline":"Central Authentication System (CAS) Server - Less critical - XML Element Injection - SA-CONTRIB-2026-007","id":"CVE-2026-1554"},"products":["WebStack"],"published":"2026-04-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-15","vendors":["Owen"]},"summary":"Unauthenticated attackers can upload arbitrary files via the WebStack WordPress theme, potentially leading to remote code execution.","url":"https://insights.sbomify.com/CVE-2026-1555/"}