{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-81766 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-81766 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-81766 is a medium-severity vulnerability in Unknown Really Simple Security, published on 30 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-81766 and fix it if it is affected.\n\nWhat it is: CVE-2026-81766 is a medium-severity vulnerability in Unknown Really Simple Security, published on 30 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-81766 in the wild and no public exploit code.\n\nAffected product: Unknown Really Simple Security. 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-2026-81766/ (Markdown: https://insights.sbomify.com/CVE-2026-81766/index.md)","id":"CVE-2026-81766","markdown":"https://insights.sbomify.com/CVE-2026-81766/index.md","name":"CVE-2026-81766","record":{"aliases":["GHSA-c5mg-rwrq-r34j"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":true,"product_category":"WordPress security plugin","requires_auth":"high_privilege","summary":"Subsite administrators can install arbitrary plugins in the network directory, enabling code execution and privilege escalation if the subsite admin menu is enabled.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":6.6,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-269","name":"Improper Privilege Management"}],"description":"The Really Simple Security  WordPress plugin before 9.8.0 does not check that the user is allowed to install Really Simple Security  WordPress plugin before 9.8.0 before installing one from a user-supplied URL, allowing an administrator of a subsite on a multisite network to install and execute arbitrary code in the network-shared Really Simple Security  WordPress plugin before 9.8.0 directory, which WordPress otherwise reserves to the network administrator. Exploitation requires the network administrator to have enabled the Really Simple Security  WordPress plugin before 9.8.0 administration menu for subsites, which is not the default.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Really Simple Security \u003c 9.8.0 - Multisite Subsite Admin+ Arbitrary Plugin Installation via rsp_upgrade_install_plugin","id":"CVE-2026-81766","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"WordPress Simple Payment plugin \u003c= 2.5.2 - Broken Access Control vulnerability","id":"CVE-2026-81767"},"packages":[],"prev":{"headline":"WordPress Tailored Tools plugin \u003c= 3.0.2 - Cross Site Scripting (XSS) vulnerability","id":"CVE-2026-81765"},"products":["Really Simple Security"],"published":"2026-08-30","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-31","vendors":["Unknown"]},"summary":"Subsite administrators can install arbitrary plugins in the network directory, enabling code execution and privilege escalation if the subsite admin menu is enabled.","url":"https://insights.sbomify.com/CVE-2026-81766/"}