CVE-2026-57346Network attack vector

Contributor-level file deletion via thumbnail traversal

Published Jun 29, 2026 · Updated Jun 29, 2026

Path traversal in thumbnail cleanup in Epiphyt Embed Privacy 1.12.3 and earlier allows remote authenticated users to delete PHP-accessible files. The cleanup routine joins a filename stored in post metadata to the thumbnail directory and unlinks it without reducing it to a basename. Contributor-level access and enabled automatic video-thumbnail downloads are required; traversal segments can target any file that PHP can delete and break the site.

CVSS severity7.1
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in thumbnail cleanup in Epiphyt Embed Privacy 1.12.3 and earlier allows remote authenticated users to delete PHP-accessible files. The cleanup routine joins a filename stored in post metadata to the thumbnail directory and unlinks it without reducing it to a basename. Contributor-level access and enabled automatic video-thumbnail downloads are required; traversal segments can target any file that PHP can delete and break the site.

The record

CVE
CVE-2026-57346
Published
Jun 29, 2026
Updated
Jun 29, 2026
Vendor
Epiphyt
Product
Embed Privacy
Classifications
CWE-22, CAPEC-126, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=1.12.3 changes=[{"at":"1.12.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Epiphyt · Embed Privacyversion=n/a <=1.12.3 changes=[{"at":"1.12.4","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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