CVE-2024-48928Network attack vectorHinoki check available

Unauthenticated ephemeral-key forgery via weak gallery secret

Published Feb 24, 2026 · Updated Feb 24, 2026

Weak key generation in Piwigo 14.0.0 through 14.5.0 allows remote attackers to forge ephemeral keys by brute-forcing the gallery secret. During installation, install.php stores secret_key as MD5(MySQL RAND()), limiting it to 30 bits and making CSRF tokens a verification oracle. No account or user interaction is required, but auto-login and session tokens also incorporate user-specific secrets, limiting the demonstrated consequence.

CVSS severity7.5
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Weak key generation in Piwigo 14.0.0 through 14.5.0 allows remote attackers to forge ephemeral keys by brute-forcing the gallery secret. During installation, install.php stores secret_key as MD5(MySQL RAND()), limiting it to 30 bits and making CSRF tokens a verification oracle. No account or user interaction is required, but auto-login and session tokens also incorporate user-specific secrets, limiting the demonstrated consequence.

The record

CVE
CVE-2024-48928
Published
Feb 24, 2026
Updated
Feb 24, 2026
Vendor
Piwigo
Product
Piwigo
Classifications
CWE-330, T1606
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 24, 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=>= 14.0.0, < 15.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Piwigo · Piwigoversion=>= 14.0.0, < 15.0.0

Published CVSS scores

7.5NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
2.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-330Use of Insufficiently Random Values
T1606Forge Web Credentials

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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