{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-126563 in the wild and no public exploit code.","exposure":"An affected version is exposed as installed. No special setting or call is needed.","fix":"No fix has been published for CVE-2026-126563 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-126563 is a medium-severity cross-site scripting vulnerability in SemanticMediaWiki, published on 11 Nov 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-2026-126563 and fix it if it is affected.\n\nWhat it is: CVE-2026-126563 is a medium-severity cross-site scripting vulnerability in SemanticMediaWiki, published on 11 Nov 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: There is no known exploitation of CVE-2026-126563 in the wild and no public exploit code.\nExposure: An affected version is exposed as installed. No special setting or call is needed.\n\nAffected product: SemanticMediaWiki. 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-2026-126563/ (Markdown: https://insights.sbomify.com/CVE-2026-126563/index.md)","id":"CVE-2026-126563","markdown":"https://insights.sbomify.com/CVE-2026-126563/index.md","name":"CVE-2026-126563","record":{"aliases":["GHSA-h252-mj7p-58q7","GHSA-p9g7-73wv-cwgh"],"analysis":{"component_type":"cms_plugin","exploitable_when_present":false,"fix_type":"upgrade","impacts":["other"],"network_reachable":"yes","non_default_config":false,"product_category":"MediaWiki extension","requires_auth":"none","requires_specific_call":false,"summary":"Unauthenticated attackers can craft Special:Ask URLs that run script in logged-in Semantic MediaWiki users' browsers.","user_interaction":"required","vuln_class":"xss","vulnerable_functions":["TimeValueFormatter::getCaptionFromFreeFormat()"]},"analysis_generated_by":"sbomify/insights-2b-fp8","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Semantic MediaWiki 2.4.0 before 7.4.1 contains a reflected cross-site scripting vulnerability in TimeValueFormatter::getCaptionFromFreeFormat(), which emits free-format date captions in HTML without escaping. Unauthenticated attackers can craft a Special:Ask URL with HTML markup in a date printout format (#-F[...]) to execute script in a logged-in victim's browser session.","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":"Semantic MediaWiki 2.4.0 before 7.4.1 Reflected XSS via Special:Ask Date Format","id":"CVE-2026-126563","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Semantic MediaWiki 2.5.0 before 7.4.1 Stored XSS via Special:Browse Factbox Title","id":"CVE-2026-126564"},"nickname":null,"packages":[],"prev":{"headline":"Semantic MediaWiki 3.0.0 before 7.4.1 Uncontrolled Recursion via ElasticStore ConceptDescriptionInterpreter","id":"CVE-2026-126562"},"products":["SemanticMediaWiki"],"published":"2026-11-11","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-11-11","vendors":["SemanticMediaWiki"]},"summary":"Unauthenticated attackers can craft Special:Ask URLs that run script in logged-in Semantic MediaWiki users' browsers.","url":"https://insights.sbomify.com/CVE-2026-126563/"}