CVE-2024-52598Public exploitNetwork attack vector

Authenticated internal resource disclosure via icon preview SSRF

Published Nov 20, 2024 · Updated Nov 20, 2024

SSRF in 2FAuth before 5.4.1 allows remote authenticated users to read text-based resources reachable by the server through icon preview. The preview endpoint fetches the image URL embedded in an otpauth URI, while its extension check accepts a crafted fragment ending in .svg and stores the response as a browser-accessible icon. An authenticated account and server reachability to the target URI are required; successful exploitation discloses retrieved text without changing data.

CVSS severity7.5
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

SSRF in 2FAuth before 5.4.1 allows remote authenticated users to read text-based resources reachable by the server through icon preview. The preview endpoint fetches the image URL embedded in an otpauth URI, while its extension check accepts a crafted fragment ending in .svg and stores the response as a browser-accessible icon. An authenticated account and server reachability to the target URI are required; successful exploitation discloses retrieved text without changing data.

The record

CVE
CVE-2024-52598
Published
Nov 20, 2024
Updated
Nov 20, 2024
Vendor
Bubka
Product
2FAuth
Classifications
CWE-80, CWE-79, CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 20, 2024Record 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=0 <5.4.1
  2. Affected versionversion=< 5.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Bubka · 2FAuthversion=0 <5.4.1; version=< 5.4.1

Published CVSS scores

7.5NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

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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