{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-8879 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-8879 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-8879 is a high-severity vulnerability in Securly Chrome Extension, published on 3 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-8879 and fix it if it is affected.\n\nWhat it is: CVE-2026-8879 is a high-severity vulnerability in Securly Chrome Extension, published on 3 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-8879 in the wild and no public exploit code.\n\nAffected product: Securly Chrome 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-2026-8879/ (Markdown: https://insights.sbomify.com/CVE-2026-8879/index.md)","id":"CVE-2026-8879","markdown":"https://insights.sbomify.com/CVE-2026-8879/index.md","name":"CVE-2026-8879","record":{"aliases":["GHSA-jg8r-xqh5-556r"],"analysis":{"component_type":"browser","fix_type":"no_fix_stated","impacts":["denial_of_service","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Securly Chrome Extension","requires_auth":"none","summary":"The extension dynamically loads unreviewed scripts that can hide page content indefinitely if servers are unreachable, causing denial of service and bypassing security reviews.","user_interaction":"not_required","vuln_class":"supply_chain"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"certcc","cpe":[{"product":"securly","vendor":"securly"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-829","name":"Inclusion of Functionality from Untrusted Control Sphere"}],"description":"Version 3.0.7 of the Securly Chrome Extension dynamically registers content13.min.js as a content script via chrome.scripting.registerContentScripts() at runtime. This script is NOT declared in manifest.json and bypasses Chrome Web Store static security review. It runs on all URLs and immediately hides all page content, creates a full-page overlay, pauses all videos, and only restores content when the service worker confirms the page passes filtering. If Securly's servers are unreachable, pages remain indefinitely hidden.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"CVE-2026-8879","id":"CVE-2026-8879","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"supply_chain","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"RomanCart Ecommerce \u003c= 2.0.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes","id":"CVE-2026-8880"},"packages":[],"prev":{"headline":"CVE-2026-8878","id":"CVE-2026-8878"},"products":["Securly Chrome Extension"],"published":"2026-06-03","related":[{"cvss_score":7.5,"headline":"CVE-2026-8878","id":"CVE-2026-8878","kev_date_added":null,"published":"2026-06-03"},{"cvss_score":7.5,"headline":"CVE-2026-8881","id":"CVE-2026-8881","kev_date_added":null,"published":"2026-06-03"},{"cvss_score":7.5,"headline":"CVE-2026-8888","id":"CVE-2026-8888","kev_date_added":null,"published":"2026-06-03"},{"cvss_score":7.5,"headline":"CVE-2026-8889","id":"CVE-2026-8889","kev_date_added":null,"published":"2026-06-03"},{"cvss_score":7.3,"headline":"CVE-2026-8876","id":"CVE-2026-8876","kev_date_added":null,"published":"2026-06-03"},{"cvss_score":7.1,"headline":"CVE-2026-8874","id":"CVE-2026-8874","kev_date_added":null,"published":"2026-06-03"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-04","vendors":["Securly"]},"summary":"The extension dynamically loads unreviewed scripts that can hide page content indefinitely if servers are unreachable, causing denial of service and bypassing security reviews.","url":"https://insights.sbomify.com/CVE-2026-8879/"}