{"answers":{"affected":"6 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-rendering-wikimacro-store. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-21379 in the wild and no public exploit code.","fix":"Upgrade org.xwiki.platform:xwiki-platform-rendering-wikimacro-store to a fixed version for your release line: 11.10.11, 12.6.3 or 12.8.","what":"CVE-2021-21379 is a high-severity vulnerability in Xwiki Xwiki, published on 12 Mar 2021. 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-2021-21379 and fix it if it is affected.\n\nWhat it is: CVE-2021-21379 is a high-severity vulnerability in Xwiki Xwiki, published on 12 Mar 2021. 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-2021-21379 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.xwiki.platform:xwiki-platform-rendering-wikimacro-store (Maven): affected from 11.4; fixed in 11.10.11\n- org.xwiki.platform:xwiki-platform-rendering-wikimacro-store (Maven): affected from 11.4; fixed in 11.10.11\n- org.xwiki.platform:xwiki-platform-rendering-wikimacro-store (Maven): affected from 12.0; fixed in 12.6.3\n- org.xwiki.platform:xwiki-platform-rendering-wikimacro-store (Maven): affected from 12.0; fixed in 12.6.3\n- org.xwiki.platform:xwiki-platform-rendering-wikimacro-store (Maven): affected from 12.7; fixed in 12.8\n- org.xwiki.platform:xwiki-platform-rendering-wikimacro-store (Maven): affected from 12.7; fixed in 12.8\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-2021-21379/ (Markdown: https://insights.sbomify.com/CVE-2021-21379/index.md)","id":"CVE-2021-21379","markdown":"https://insights.sbomify.com/CVE-2021-21379/index.md","name":"CVE-2021-21379","record":{"aliases":["GHSA-v662-xpcc-9xf6"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":true,"product_category":"XWiki Platform","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary code with elevated privileges by injecting scripts into wiki macros that run with the author's rights.","user_interaction":"required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"xwiki","vendor":"xwiki"}],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-281","name":"Improper Preservation of Permissions"}],"description":"XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions of XWiki Platform, the `{{wikimacrocontent}}` executes the content with the rights of the wiki macro author instead of the caller of that wiki macro. This makes possible to inject scripts through it and they will be executed with the rights of the wiki macro (very often a user which has Programming rights). Fortunately, no such macro exists by default in XWiki Standard but one could have been created or installed with an extension. This vulnerability has been patched in versions XWiki 12.6.3, 11.10.11 and 12.8-rc-1. There is no easy workaround other than disabling the affected macros. Inserting content in a safe way or knowing what is the user who called the wiki macro is not easy.","ecosystems":["Maven"],"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":"It's possible to execute anything with the rights of the author of a macro which uses the {{wikimacrocontent}} macro","id":"CVE-2021-21379","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"xwiki:xwiki","products":["xwiki:xwiki"],"type":"privilege_escalation","year":"2021"},"n_packages":6,"n_references":2,"next":{"headline":"Rating Script Service expose XWiki to SQL injection","id":"CVE-2021-21380"},"packages":[{"ecosystem":"Maven","fixed":["11.10.11"],"introduced":["11.4"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-wikimacro-store","purl":null,"source":"GHSA-v662-xpcc-9xf6"},{"ecosystem":"Maven","fixed":["11.10.11"],"introduced":["11.4"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-wikimacro-store","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rendering-wikimacro-store","source":"GHSA-v662-xpcc-9xf6"},{"ecosystem":"Maven","fixed":["12.6.3"],"introduced":["12.0"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-wikimacro-store","purl":null,"source":"GHSA-v662-xpcc-9xf6"},{"ecosystem":"Maven","fixed":["12.6.3"],"introduced":["12.0"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-wikimacro-store","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rendering-wikimacro-store","source":"GHSA-v662-xpcc-9xf6"},{"ecosystem":"Maven","fixed":["12.8"],"introduced":["12.7"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-wikimacro-store","purl":null,"source":"GHSA-v662-xpcc-9xf6"},{"ecosystem":"Maven","fixed":["12.8"],"introduced":["12.7"],"last_affected":[],"package":"org.xwiki.platform:xwiki-platform-rendering-wikimacro-store","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rendering-wikimacro-store","source":"GHSA-v662-xpcc-9xf6"}],"prev":{"headline":"JWT authentication bypass with unknown issuer token","id":"CVE-2021-21378"},"products":["xwiki-platform"],"published":"2021-03-12","related":[{"cvss_score":9.8,"headline":"XWiki Platform Eval Injection","id":"CVE-2025-24893","kev_date_added":"2025-10-30","published":"2025-02-20"},{"cvss_score":10,"headline":"XWiki Rendering is vulnerable to RCE attacks when processing nested macros","id":"CVE-2025-53836","kev_date_added":null,"published":"2025-07-14"},{"cvss_score":10,"headline":"XWiki allows remote code execution through the extension sheet","id":"CVE-2024-55662","kev_date_added":null,"published":"2024-12-12"},{"cvss_score":10,"headline":"XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList","id":"CVE-2024-55877","kev_date_added":null,"published":"2024-12-12"},{"cvss_score":10,"headline":"XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet","id":"CVE-2024-37901","kev_date_added":null,"published":"2024-07-31"},{"cvss_score":10,"headline":"XWiki programming rights may be inherited by inclusion","id":"CVE-2024-38369","kev_date_added":null,"published":"2024-06-24"},{"cvss_score":10,"headline":"XWiki Platform: Remote code execution from account via SearchSuggestSourceSheet","id":"CVE-2024-31465","kev_date_added":null,"published":"2024-04-10"}],"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":"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":"2024-08-03","vendors":["xwiki"]},"summary":"Attackers can execute arbitrary code with elevated privileges by injecting scripts into wiki macros that run with the author's rights.","url":"https://insights.sbomify.com/CVE-2021-21379/"}