{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-26260 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-26260 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-26260 is a medium-severity server-side request forgery vulnerability in BookStackApp BookStack, published on 9 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-26260 and fix it if it is affected.\n\nWhat it is: CVE-2020-26260 is a medium-severity server-side request forgery vulnerability in BookStackApp BookStack, published on 9 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-26260 in the wild and no public exploit code.\n\nAffected product: BookStackApp BookStack. 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-2020-26260/ (Markdown: https://insights.sbomify.com/CVE-2020-26260/index.md)","id":"CVE-2020-26260","markdown":"https://insights.sbomify.com/CVE-2020-26260/index.md","name":"CVE-2020-26260","record":{"aliases":["GHSA-8wfc-w2r5-x7cr"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"BookStack documentation platform","requires_auth":"low_privilege","summary":"An attacker with page edit permissions can trigger server-side requests and access internal files via manipulated image URLs in BookStack.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"bookstack","vendor":"bookstackapp"}],"cvss":{"score":6.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"BookStack is a platform for storing and organising information and documentation. In BookStack before version 0.30.5, a user with permissions to edit a page could set certain image URL's to manipulate functionality in the exporting system, which would allow them to make server side requests and/or have access to a wider scope of files within the BookStack file storage locations. The issue was addressed in BookStack v0.30.5. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Server Side Request Forgery in BookStack","id":"CVE-2020-26260","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"ssrf","year":"2020"},"n_packages":0,"n_references":3,"next":{"headline":"user-readable api tokens in systemd units","id":"CVE-2020-26261"},"packages":[],"prev":{"headline":"XStream is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling","id":"CVE-2020-26259"},"products":["BookStack"],"published":"2020-12-09","related":[{"cvss_score":7.9,"headline":"Remote Code Execution Through Image Uploads in BookStack","id":"CVE-2020-5256","kev_date_added":null,"published":"2020-03-09"},{"cvss_score":7.7,"headline":"Cross-Site Scripting in BookStack","id":"CVE-2020-26210","kev_date_added":null,"published":"2020-11-03"},{"cvss_score":7.7,"headline":"Cross-Site Scripting in BookStack","id":"CVE-2020-26211","kev_date_added":null,"published":"2020-11-03"},{"cvss_score":7.6,"headline":"Cross-site Scripting (XSS) - Stored in bookstackapp/bookstack","id":"CVE-2022-0877","kev_date_added":null,"published":"2022-03-08"},{"cvss_score":7.6,"headline":"Unrestricted Upload of File with Dangerous Type in bookstackapp/bookstack","id":"CVE-2021-3915","kev_date_added":null,"published":"2021-11-13"},{"cvss_score":6.5,"headline":"Book Stack v23.10.2 - LFR via Blind SSRF","id":"CVE-2023-6199","kev_date_added":null,"published":"2023-11-20"},{"cvss_score":6.5,"headline":"Improper Access Control in bookstackapp/bookstack","id":"CVE-2021-4026","kev_date_added":null,"published":"2021-11-30"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["BookStackApp"]},"summary":"An attacker with page edit permissions can trigger server-side requests and access internal files via manipulated image URLs in BookStack.","url":"https://insights.sbomify.com/CVE-2020-26260/"}