{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13538 exists.","fix":"No fix has been published for CVE-2026-13538 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-13538 is a medium-severity command injection vulnerability in Wavlink WL-NU516U1-A, published on 29 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-13538 and fix it if it is affected.\n\nWhat it is: CVE-2026-13538 is a medium-severity command injection vulnerability in Wavlink WL-NU516U1-A, published on 29 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13538 exists.\n\nAffected product: Wavlink WL-NU516U1-A. 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-2026-13538/ (Markdown: https://insights.sbomify.com/CVE-2026-13538/index.md)","id":"CVE-2026-13538","markdown":"https://insights.sbomify.com/CVE-2026-13538/index.md","name":"CVE-2026-13538","record":{"aliases":["GHSA-ffh8-39gq-j894"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Wavlink wireless router","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary commands via crafted POST parameters in the wireless configuration interface of Wavlink routers.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command"},{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"A vulnerability was determined in Wavlink WL-NU516U1-A M16U1_V240425. The affected element is the function sub_401D68 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. This manipulation of the argument SSID2G2/SSID5G2/AuthMethod2/WPAPSK12 causes command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.","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":"Wavlink WL-NU516U1-A POST Parameter wireless.cgi sub_401D68 command injection","id":"CVE-2026-13538","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":10,"next":{"headline":"Wavlink WL-NU516U1-A POST Parameter wireless.cgi sub_407504 stack-based overflow","id":"CVE-2026-13539"},"packages":[],"prev":{"headline":"CodeAstro Human Resource Management System cross-site request forgery","id":"CVE-2026-13537"},"products":["WL-NU516U1-A"],"published":"2026-06-29","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)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-29","vendors":["Wavlink"]},"summary":"Remote attackers can execute arbitrary commands via crafted POST parameters in the wireless configuration interface of Wavlink routers.","url":"https://insights.sbomify.com/CVE-2026-13538/"}