{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53486 exists.","fix":"No fix has been published for CVE-2025-53486 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-53486 is a medium-severity cross-site scripting vulnerability in Wikimedia Foundation Mediawiki - WikiCategoryTagCloud extension, published on 7 Jul 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-2025-53486 and fix it if it is affected.\n\nWhat it is: CVE-2025-53486 is a medium-severity cross-site scripting vulnerability in Wikimedia Foundation Mediawiki - WikiCategoryTagCloud extension, published on 7 Jul 2025. Any signed-in user can exploit it over the network, 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-2025-53486 exists.\n\nAffected product: Wikimedia Foundation Mediawiki - WikiCategoryTagCloud extension. 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-2025-53486/ (Markdown: https://insights.sbomify.com/CVE-2025-53486/index.md)","id":"CVE-2025-53486","markdown":"https://insights.sbomify.com/CVE-2025-53486/index.md","name":"CVE-2025-53486","record":{"aliases":["GHSA-p6wr-jj4q-jc36"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"MediaWiki extension","requires_auth":"low_privilege","summary":"Reflected XSS in WikiCategoryTagCloud allows attackers to execute arbitrary JavaScript via the linkstyle attribute when victims hover over links.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"wikimedia-foundation","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"The WikiCategoryTagCloud extension is vulnerable to reflected XSS via the linkstyle attribute, which is improperly concatenated into inline HTML without escaping. An attacker can inject JavaScript event handlers such as onmouseenter using carefully crafted input via the {{#tag:tagcloud}} parser function, resulting in arbitrary JavaScript execution when a victim hovers over a link in the category cloud.\n\nThe vulnerability exists because the linkstyle parameter is only passed through Sanitizer::checkCss() (which does not escape HTML) and is then directly inserted into a style attribute using string concatenation instead of Html::element or Html::openElement.\n\nThis issue affects Mediawiki - WikiCategoryTagCloud extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"WikiCategoryTagCloud: Reflected Cross-Site Scripting (XSS) via linkstyle attribute in parser function","id":"CVE-2025-53486","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"ApprovedRevs: Stored Cross-Site Scripting (XSS) via unsanitized system messages","id":"CVE-2025-53487"},"packages":[],"prev":{"headline":"SecurePoll: Unauthorized access to SetTranslationHandler allows arbitrary text changes","id":"CVE-2025-53485"},"products":["Mediawiki - WikiCategoryTagCloud extension"],"published":"2025-07-07","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":"2025-07-07","vendors":["Wikimedia Foundation"]},"summary":"Reflected XSS in WikiCategoryTagCloud allows attackers to execute arbitrary JavaScript via the linkstyle attribute when victims hover over links.","url":"https://insights.sbomify.com/CVE-2025-53486/"}