{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15559 exists.","fix":"No fix has been published for CVE-2025-15559 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-15559 is a critical command injection vulnerability in NesterSoft Inc. WorkTime (on-prem/cloud), published on 19 Feb 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-2025-15559 and fix it if it is affected.\n\nWhat it is: CVE-2025-15559 is a critical command injection vulnerability in NesterSoft Inc. WorkTime (on-prem/cloud), published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15559 exists.\n\nAffected product: NesterSoft Inc. WorkTime (on-prem/cloud). 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-2025-15559/ (Markdown: https://insights.sbomify.com/CVE-2025-15559/index.md)","id":"CVE-2025-15559","markdown":"https://insights.sbomify.com/CVE-2025-15559/index.md","name":"CVE-2025-15559","record":{"aliases":["GHSA-p5gf-vhgm-432f"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"WorkTime server","requires_auth":"none","summary":"Unauthenticated attackers can execute arbitrary OS commands with SYSTEM privileges via the guid parameter in the WorkTime server API.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"SEC-VLab","cpe":[{"product":"worktime","vendor":"nestersoft"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","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-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"An unauthenticated attacker can inject OS commands when calling a server API endpoint in NesterSoft WorkTime. The server API call to generate and download the WorkTime client from the WorkTime server is vulnerable in the “guid” parameter. This allows an attacker to execute arbitrary commands on the WorkTime server as NT Authority\\SYSTEM with the highest privileges. Attackers are able to access or manipulate sensitive data and take over the whole server.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Unauthenticated OS Command Injection in NesterSoft WorkTime","id":"CVE-2025-15559","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"SQL Injection in NesterSoft WorkTime","id":"CVE-2025-15560"},"packages":[],"prev":{"headline":"Docker Desktop Docker Plugins Uncontrolled Search Path Element Local Privilege Escalation Vulnerability","id":"CVE-2025-15558"},"products":["WorkTime (on-prem/cloud)"],"published":"2026-02-19","related":[{"cvss_score":8.8,"headline":"SQL Injection in NesterSoft WorkTime","id":"CVE-2025-15560","kev_date_added":null,"published":"2026-02-19"},{"cvss_score":7.8,"headline":"Local Privilege Escalation in NesterSoft WorkTime","id":"CVE-2025-15561","kev_date_added":null,"published":"2026-02-19"},{"cvss_score":6.1,"headline":"Reflected Cross-Site Scripting in NesterSoft WorkTime","id":"CVE-2025-15562","kev_date_added":null,"published":"2026-02-19"},{"cvss_score":5.3,"headline":"Broken Access Control results in Denial of Service in NesterSoft WorkTime","id":"CVE-2025-15563","kev_date_added":null,"published":"2026-02-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-23","vendors":["NesterSoft Inc."]},"summary":"Unauthenticated attackers can execute arbitrary OS commands with SYSTEM privileges via the guid parameter in the WorkTime server API.","url":"https://insights.sbomify.com/CVE-2025-15559/"}