{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-30977 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-30977 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-30977 is a low-severity cross-site scripting vulnerability in lihaohong6 RenderBlocking, published on 10 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-30977 and fix it if it is affected.\n\nWhat it is: CVE-2026-30977 is a low-severity cross-site scripting vulnerability in lihaohong6 RenderBlocking, published on 10 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-30977 in the wild and no public exploit code.\n\nAffected product: lihaohong6 RenderBlocking. 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-2026-30977/ (Markdown: https://insights.sbomify.com/CVE-2026-30977/index.md)","id":"CVE-2026-30977","markdown":"https://insights.sbomify.com/CVE-2026-30977/index.md","name":"CVE-2026-30977","record":{"aliases":["GHSA-4h5r-8rjm-496r"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"MediaWiki extension","requires_auth":"high_privilege","summary":"Stored XSS in RenderBlocking extension allows attackers to execute scripts when Inline Assets mode is enabled and user has edit rights.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":2,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/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":"RenderBlocking is a MediaWiki extension that allows interface administrators to specify render-blocking CSS and JavaScript. Prior to 0.1.1, there is Stored XSS in renderblocking-css with Inline Assets mode. $wgRenderBlockingInlineAssets = true and editsitecss user rights are required. This vulnerability is fixed in 0.1.1.","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":"RenderBlocking has Stored XSS in renderblocking-css with Inline Assets mode","id":"CVE-2026-30977","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Heap-use-after-free in CIccCmm::AddXform()","id":"CVE-2026-30978"},"packages":[],"prev":{"headline":"Sonarr Path Traversal vulnerability","id":"CVE-2026-30976"},"products":["RenderBlocking"],"published":"2026-03-10","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-11","vendors":["lihaohong6"]},"summary":"Stored XSS in RenderBlocking extension allows attackers to execute scripts when Inline Assets mode is enabled and user has edit rights.","url":"https://insights.sbomify.com/CVE-2026-30977/"}