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VulnerabilityPublished

CVE-2026-8876: Securly Chrome Extension · CWE-321

Affects Securly Chrome ExtensionSource CVE Database V5

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Not known to be exploited · CVSS 7.3 High.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.3High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
SecurlySecurly Chrome ExtensionAffected
  • <=3.0.7
Fixed in–
npmsecurly/securly-chrome-extensionpkg:npm/securly/securly-chrome-extensionOther threatsAffected
  • =3.0.7
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a patch is available, users should consider disabling or uninstalling version 3.0.7 of the Securly Chrome Extension to avoid exposure to this vulnerability.

Description

Version 3.0.7 of the Securly Chrome Extension contains hardcoded, plaintext AES passphrases in securly.min.js. These keys decrypt crisis alert keyword data and intervention site data.

References

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