CVE-2026-8874

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Summary

CVECVE-2026-8874
StatePUBLISHED
Assignercertcc
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-03 19:16:39 UTC
Updated2026-06-05 20:47:12 UTC
DescriptionVersion 3.0.7 of the Securly Chrome Extension downloads JSON files containing crisis alert keywords and filtering rules over unencrypted HTTP via the Fetch API. Other endpoints in the same extension correctly fetch IWF and CIPA data over HTTPS, demonstrating an inconsistent implementation of TLS.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from ADP

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

EPSS: 0.000060000 probability, percentile 0.004650000 (date 2026-06-11)

Problem Types: CWE-319 | CWE-319 Cleartext Transmission of Sensitive Information | CWE-319 CWE-319 Cleartext Transmission of Sensitive Information

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.1HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.1HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Securly Securly 3.0.7 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Securly Securly Chrome Extension affected 3.0.7 custom Not specified

References

ReferenceSourceLinkTags
kb.cert.org/vuls/id/595768 [email protected] kb.cert.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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