{"answers":{"affected":"14 open source packages ship an affected version, including github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost and github.com/mattermost/mattermost-plugin-github. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-13352 in the wild and no public exploit code.","fix":"Upgrade github.com/mattermost/mattermost/server/v8 to 10.11.7-0.20251106103514-3b05384dd014 or later.","what":"CVE-2025-13352 is a low-severity missing authorization vulnerability in Mattermost Mattermost Server, published on 17 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-13352 and fix it if it is affected.\n\nWhat it is: CVE-2025-13352 is a low-severity missing authorization vulnerability in Mattermost Mattermost Server, published on 17 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2025-13352 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/mattermost/mattermost/server/v8 (Go): affected all versions; no fix listed\n- github.com/mattermost/mattermost/server/v8 (Go): affected from 10.11.0-rc1; fixed in 10.11.7-0.20251106103514-3b05384dd014\n- github.com/mattermost/mattermost/server/v8 (Go): affected from 10.11.0-rc1; fixed in 10.11.7-0.20251106103514-3b05384dd014\n- github.com/mattermost/mattermost (Go): affected all versions; fixed in 10.11.7-0.20251106103514-3b05384dd014\n- github.com/mattermost/mattermost (Go): affected all versions; fixed in 10.11.7-0.20251106103514-3b05384dd014\n- github.com/mattermost/mattermost (Go): affected from 11.0.0-alpha.1; fixed in 11.1.0\n- github.com/mattermost/mattermost (Go): affected from 11.0.0-alpha.1; fixed in 11.1.0\n- github.com/mattermost/mattermost (Go): affected from 11.0.0-alpha.1+incompatible; fixed in 11.1.0+incompatible\n- github.com/mattermost/mattermost-plugin-github (Go): affected all versions; fixed in 1.0.1-0.20250829075715-0deffcfc6bee\n- github.com/mattermost/mattermost-plugin-github (Go): affected all versions; fixed in 1.0.1-0.20250829075715-0deffcfc6bee\n- github.com/mattermost/mattermost-plugin-github (Go): affected all versions; fixed in 1.0.1-0.20250829075715-0deffcfc6bee\n- github.com/mattermost/mattermost-server (Go): affected from 10.11.0-rc1+incompatible; no fix listed\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-2025-13352/ (Markdown: https://insights.sbomify.com/CVE-2025-13352/index.md)","id":"CVE-2025-13352","markdown":"https://insights.sbomify.com/CVE-2025-13352/index.md","name":"CVE-2025-13352","record":{"aliases":["GHSA-jf5h-xfw4-p8gp","GO-2025-4247"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Mattermost GitHub plugin","requires_auth":"low_privilege","summary":"Attackers can hijack GitHub reaction features to force users to add reactions to arbitrary GitHub objects via crafted notification posts.","user_interaction":"required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Mattermost","cpe":[{"product":"mattermost_server","vendor":"mattermost"}],"cvss":{"score":3,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-1287","name":"Improper Validation of Specified Type of Input"}],"description":"Mattermost versions 10.11.x \u003c= 10.11.6 and Mattermost GitHub plugin versions \u003c=2.4.0 fail to validate plugin bot identity in reaction forwarding which allows attackers to hijack the GitHub reaction feature to make users add reactions to arbitrary GitHub objects via crafted notification posts.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Mattermost GitHub Plugin allows unauthorized GitHub reactions via reaction forwarding hijacking","id":"CVE-2025-13352","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"mattermost:mattermost_server","products":["mattermost:mattermost_server"],"type":"missing_authorization","year":"2025"},"n_packages":14,"n_references":1,"next":{"headline":"gokey allows secret recovery from a seed file without the master password","id":"CVE-2025-13353"},"packages":[{"ecosystem":"Go","fixed":["10.11.7-0.20251106103514-3b05384dd014"],"introduced":["0"],"last_affected":[],"package":"github.com/mattermost/mattermost","purl":null,"source":"GHSA-jf5h-xfw4-p8gp"},{"ecosystem":"Go","fixed":["10.11.7-0.20251106103514-3b05384dd014"],"introduced":["0"],"last_affected":[],"package":"github.com/mattermost/mattermost","purl":"pkg:golang/github.com/mattermost/mattermost","source":"GHSA-jf5h-xfw4-p8gp"},{"ecosystem":"Go","fixed":["11.1.0"],"introduced":["11.0.0-alpha.1"],"last_affected":[],"package":"github.com/mattermost/mattermost","purl":null,"source":"GHSA-jf5h-xfw4-p8gp"},{"ecosystem":"Go","fixed":["11.1.0"],"introduced":["11.0.0-alpha.1"],"last_affected":[],"package":"github.com/mattermost/mattermost","purl":"pkg:golang/github.com/mattermost/mattermost","source":"GHSA-jf5h-xfw4-p8gp"},{"ecosystem":"Go","fixed":["11.1.0+incompatible"],"introduced":["11.0.0-alpha.1+incompatible"],"last_affected":[],"package":"github.com/mattermost/mattermost","purl":"pkg:golang/github.com/mattermost/mattermost","source":"GO-2025-4247"},{"ecosystem":"Go","fixed":["1.0.1-0.20250829075715-0deffcfc6bee"],"introduced":["0"],"last_affected":[],"package":"github.com/mattermost/mattermost-plugin-github","purl":null,"source":"GHSA-jf5h-xfw4-p8gp"},{"ecosystem":"Go","fixed":["1.0.1-0.20250829075715-0deffcfc6bee"],"introduced":["0"],"last_affected":[],"package":"github.com/mattermost/mattermost-plugin-github","purl":"pkg:golang/github.com/mattermost/mattermost-plugin-github","source":"GHSA-jf5h-xfw4-p8gp"},{"ecosystem":"Go","fixed":["1.0.1-0.20250829075715-0deffcfc6bee"],"introduced":["0"],"last_affected":[],"package":"github.com/mattermost/mattermost-plugin-github","purl":"pkg:golang/github.com/mattermost/mattermost-plugin-github","source":"GO-2025-4247"},{"ecosystem":"Go","fixed":[],"introduced":["10.11.0-rc1+incompatible"],"last_affected":[],"package":"github.com/mattermost/mattermost-server","purl":"pkg:golang/github.com/mattermost/mattermost-server","source":"GO-2025-4247"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/mattermost/mattermost-server/v5","purl":"pkg:golang/github.com/mattermost/mattermost-server/v5","source":"GO-2025-4247"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/mattermost/mattermost-server/v6","purl":"pkg:golang/github.com/mattermost/mattermost-server/v6","source":"GO-2025-4247"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/mattermost/mattermost/server/v8","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8","source":"GO-2025-4247"},{"ecosystem":"Go","fixed":["10.11.7-0.20251106103514-3b05384dd014"],"introduced":["10.11.0-rc1"],"last_affected":[],"package":"github.com/mattermost/mattermost/server/v8","purl":null,"source":"GHSA-jf5h-xfw4-p8gp"},{"ecosystem":"Go","fixed":["10.11.7-0.20251106103514-3b05384dd014"],"introduced":["10.11.0-rc1"],"last_affected":[],"package":"github.com/mattermost/mattermost/server/v8","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8","source":"GHSA-jf5h-xfw4-p8gp"}],"prev":{"headline":"Use-after-free of orphaned AF_UNIX in Ubuntu builds of Linux kernel","id":"CVE-2025-13350"},"products":["Mattermost"],"published":"2025-12-17","related":[{"cvss_score":9.9,"headline":"Account takeover on OAuth/OpenID-enabled servers","id":"CVE-2025-12419","kev_date_added":null,"published":"2025-11-27"},{"cvss_score":9.9,"headline":"Account Takeover via Code Exchange Endpoint","id":"CVE-2025-12421","kev_date_added":null,"published":"2025-11-27"},{"cvss_score":9.9,"headline":"Path Traversal Leading to RCE by Any Authenticated Mattermost User","id":"CVE-2025-4981","kev_date_added":null,"published":"2025-06-20"},{"cvss_score":9.9,"headline":"Arbitrary file read via block duplication in Mattermost Boards","id":"CVE-2025-20051","kev_date_added":null,"published":"2025-02-24"},{"cvss_score":9.9,"headline":"Arbitrary file read in Mattermost Boards via import \u0026 export board archive","id":"CVE-2025-25279","kev_date_added":null,"published":"2025-02-24"},{"cvss_score":9.8,"headline":"Mattermost Server: Insufficient Password-Reset Link Invalidation","id":"CVE-2016-11074","kev_date_added":null,"published":"2020-06-19"},{"cvss_score":9.8,"headline":"Mattermost Server allows attackers to gain privileges by accessing unintended API endpoints with users' credentials","id":"CVE-2017-18885","kev_date_added":null,"published":"2020-06-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-12-17","vendors":["Mattermost"]},"summary":"Attackers can hijack GitHub reaction features to force users to add reactions to arbitrary GitHub objects via crafted notification posts.","url":"https://insights.sbomify.com/CVE-2025-13352/"}