CVE-2026-35180Public exploitNetwork attack vector

Logo overwrite via pre-validation base64 file write

Published Apr 6, 2026 · Updated Apr 6, 2026

CSRF in World Wide Broadcast Network AVideo 26.0 and earlier allows remote attackers to overwrite the site logo through an administrator's browser. The admin/customize_settings_nativeUpdate.json.php endpoint decodes logoImgBase64 and calls file_put_contents before its later ORM save invokes the Origin and Referer domain check. A logged-in administrator must visit attacker-controlled content; SameSite=None sends the session cookie, limiting the demonstrated consequence to logo defacement.

CVSS severity4.3
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in World Wide Broadcast Network AVideo 26.0 and earlier allows remote attackers to overwrite the site logo through an administrator's browser. The admin/customize_settings_nativeUpdate.json.php endpoint decodes logoImgBase64 and calls file_put_contents before its later ORM save invokes the Origin and Referer domain check. A logged-in administrator must visit attacker-controlled content; SameSite=None sends the session cookie, limiting the demonstrated consequence to logo defacement.

The record

CVE
CVE-2026-35180
Published
Apr 6, 2026
Updated
Apr 6, 2026
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-352
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 6, 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=<= 26.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

World Wide Broadcast Network · AVideoversion=<= 26.0

Published CVSS scores

4.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)

Public exploit references

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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