{"cve":"CVE-2020-15135","nvd":{"published":"2020-08-04T21:15:14.953","modified":"2026-06-17T02:56:07.223","status":"Modified","description":"save-server (npm package) before version 1.05 is affected by a CSRF vulnerability, as there is no CSRF mitigation (Tokens etc.). The fix introduced in version version 1.05 unintentionally breaks uploading so version v1.0.7 is the fixed version. This is patched by implementing Double submit. The CSRF attack would require you to navigate to a malicious site while you have an active session with Save-Server (Session key stored in cookies). The malicious user would then be able to perform some actions, including uploading/deleting files and adding redirects. If you are logged in as root, this attack is significantly more severe. They can in addition create, delete and update users. If they updated the password of a user, that user's files would then be available. If the root password is updated, all files would be visible if they logged in with the new password. Note that due to the same origin policy malicious actors cannot view the gallery or the response of any of the methods, nor be sure they succeeded. This issue has been patched in version 1.0.7.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L","score":7.6},"cwes":["CWE-352"],"references":["https://github.com/Neztore/save-server/security/advisories/GHSA-wwrj-35w6-77ff","https://medium.com/cross-site-request-forgery-csrf/double-submit-cookie-pattern-65bb71d80d9f","https://www.npmjs.com/package/save-server","https://github.com/Neztore/save-server/security/advisories/GHSA-wwrj-35w6-77ff","https://medium.com/cross-site-request-forgery-csrf/double-submit-cookie-pattern-65bb71d80d9f"],"products":["save-server_project:save-server"],"source":"nvd","synced_at":"2026-10-19T21:06:22.076270124+00:00"},"epss":{"cve":"CVE-2020-15135","score":0.00722,"percentile":0.54002,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wwrj-35w6-77ff","url":"https://osv.dev/vulnerability/GHSA-wwrj-35w6-77ff","summary":"CSRF vulnerability in save-server","modified":"2026-09-10T03:48:52.410948526Z","packages":[{"ecosystem":"npm","name":"save-server","purl":"pkg:npm/save-server","ranges":["<1.0.7"],"fixed":["1.0.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}