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.
Metrics
Affected Vendors & Products
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OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.
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References
| Link | Providers |
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| https://kb.cert.org/vuls/id/595768 |
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History
Wed, 03 Jun 2026 22:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-269 CWE-400 |
Wed, 03 Jun 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | CVE-2026-8879 | |
| References |
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MITRE
Status: PUBLISHED
Assigner: certcc
Published:
Updated: 2026-06-03T18:11:04.269Z
Reserved: 2026-05-18T20:29:18.234Z
Link: CVE-2026-8879
Vulnrichment
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NVD
Status : Received
Published: 2026-06-03T19:16:39.513
Modified: 2026-06-03T19:16:39.513
Link: CVE-2026-8879
Redhat
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OpenCVE Enrichment
Updated: 2026-06-03T22:00:15Z