CVE-2025-55736Public exploitNetwork attack vector

Authenticated Administrator escalation via pre-authorization role change

Published Aug 19, 2025 · Updated Aug 19, 2025

Privilege escalation in Dogukan Urker FlaskBlog 2.8.0 and earlier allows remote authenticated users to grant themselves admin access. The adminPanelUsers route processes userRoleChangeButton and calls changeUserRole before checking whether the session user is an administrator. Any signed-in user can submit the crafted form request, then delete users, posts, and comments through administrative functions.

CVSS severity9.3
Critical
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Dogukan Urker FlaskBlog 2.8.0 and earlier allows remote authenticated users to grant themselves admin access. The adminPanelUsers route processes userRoleChangeButton and calls changeUserRole before checking whether the session user is an administrator. Any signed-in user can submit the crafted form request, then delete users, posts, and comments through administrative functions.

The record

CVE
CVE-2025-55736
Published
Aug 19, 2025
Updated
Aug 19, 2025
Vendor
Dogukan Urker
Product
FlaskBlog
Classifications
CWE-425, CWE-807, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 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?

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

  1. Affected versionversion=<= 2.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Dogukan Urker · FlaskBlogversion=<= 2.8.0

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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.

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-425Direct Request ('Forced Browsing')
CWE-807Reliance on Untrusted Inputs in a Security Decision
T1098Account Manipulation

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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