{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55840 exists.","fix":"No fix has been published for CVE-2026-55840 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-55840 is a medium-severity vulnerability in Erudika scoold, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-55840 and fix it if it is affected.\n\nWhat it is: CVE-2026-55840 is a medium-severity vulnerability in Erudika scoold, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55840 exists.\n\nAffected product: Erudika scoold. 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-2026-55840/ (Markdown: https://insights.sbomify.com/CVE-2026-55840/index.md)","id":"CVE-2026-55840","markdown":"https://insights.sbomify.com/CVE-2026-55840/index.md","name":"CVE-2026-55840","record":{"aliases":["GHSA-85fm-6f2v-74pq"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Q\u0026A platform","requires_auth":"none","summary":"Attackers can redirect users to malicious sites after login via flawed URL validation, enabling phishing and credential theft in Scoold.","user_interaction":"required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"}],"description":"Scoold is a Q\u0026A and a knowledge sharing platform for teams. Prior to 1.69.1, the getBackToUrl() method in src/main/java/com/erudika/scoold/utils/HttpUtils.java validates the backto and returnto parameters with Strings.CI.startsWith against the configured server URL. An attacker can supply an absolute URL whose hostname begins with the legitimate hostname, causing URI.resolve() to retain the attacker URL and the prefix check to accept it. A victim who follows the crafted sign-in link can be redirected to an attacker-controlled domain after authentication, enabling phishing and possible credential or token theft. This issue is fixed in version 1.69.1.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Scoold: Open Redirect in getBackToUrl() allows phishing via domain-prefix startsWith bypass","id":"CVE-2026-55840","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"open_redirect","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Graylog: Fortigate syslog message parser can be exploited to modify or delete fields from the original message","id":"CVE-2026-55841"},"packages":[],"prev":{"headline":"Kestra: Stored XSS via custom Markdown [[link]] attribute injection","id":"CVE-2026-55839"},"products":["scoold"],"published":"2026-10-15","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)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Erudika"]},"summary":"Attackers can redirect users to malicious sites after login via flawed URL validation, enabling phishing and credential theft in Scoold.","url":"https://insights.sbomify.com/CVE-2026-55840/"}