CVE-2025-54761Public exploitNetwork attack vector

Administrator access via hard-coded session signing key

Published Sep 19, 2025 · Updated Sep 19, 2025

Session forgery in PPress 0.0.9-beta allows remote authenticated users to gain administrator access through a crafted session cookie. The create_app function in app/init.py configures Flask with the hard-coded session signing key PPress, enabling a user to sign a cookie whose identifier is changed to administrator ID 1. A registered account and an ordinary user's session cookie are required; replacing that cookie causes the server to treat the user as the administrator.

CVSS severity8.0
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session forgery in PPress 0.0.9-beta allows remote authenticated users to gain administrator access through a crafted session cookie. The create_app function in app/init.py configures Flask with the hard-coded session signing key PPress, enabling a user to sign a cookie whose identifier is changed to administrator ID 1. A registered account and an ordinary user's session cookie are required; replacing that cookie causes the server to treat the user as the administrator.

The record

CVE
CVE-2025-54761
Published
Sep 19, 2025
Updated
Sep 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-384, CWE-269, CWE-287, T1550.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.0CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/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 exploitPublished

Weakness, pattern, technique

CWE-384Session Fixation
CWE-269Improper Privilege Management
CWE-287Improper Authentication
T1550.004Use Alternate Authentication Material: Web Session Cookie

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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