CVE-2023-33175Network attack vector

Cross-user data disclosure via shared server cache

Published May 30, 2023 · Updated Jan 10, 2025

Information disclosure in Mubarak Almehairbi ToUI 2.0.1 through 2.4.0 allows remote attackers to read other users' variables. Website.user_vars stores per-user values in Flask-Caching SimpleCache on the server without isolating cache entries by user, so values cross user contexts. The condition is remotely reachable without authentication only in applications using Website.user_vars, exposing and permitting changes to another user's values.

CVSS severity9.1
Critical
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Mubarak Almehairbi ToUI 2.0.1 through 2.4.0 allows remote attackers to read other users' variables. Website.user_vars stores per-user values in Flask-Caching SimpleCache on the server without isolating cache entries by user, so values cross user contexts. The condition is remotely reachable without authentication only in applications using Website.user_vars, exposing and permitting changes to another user's values.

The record

CVE
CVE-2023-33175
Published
May 30, 2023
Updated
Jan 10, 2025
Vendor
Mubarak Almehairbi
Product
ToUI
Classifications
CWE-914, CWE-913
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 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=>= 2.0.1, < 2.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mubarak Almehairbi · ToUIversion=>= 2.0.1, < 2.4.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-914Improper Control of Dynamically-Identified Variables
CWE-913Improper Control of Dynamically-Managed Code Resources

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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