CVE-2024-4358Known exploitationPublic exploitNetwork attack vector

Administrator account creation via exposed setup endpoint

Published May 29, 2024 · Updated Oct 21, 2025

Authentication bypass in Progress Telerik Report Server 10.0.24.305 and earlier allows remote attackers to create administrator accounts. The Register method fails to validate that initial setup has finished, leaving the unauthenticated /startup/register endpoint able to create a user with System Administrator privileges. Exposure requires an IIS deployment with that setup route reachable; the bypass itself grants restricted administrative functionality.

CVSS severity9.8
Critical
EPSS probability97.48%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Progress Telerik Report Server 10.0.24.305 and earlier allows remote attackers to create administrator accounts. The Register method fails to validate that initial setup has finished, leaving the unauthenticated /startup/register endpoint able to create a user with System Administrator privileges. Exposure requires an IIS deployment with that setup route reachable; the bypass itself grants restricted administrative functionality.

The record

CVE
CVE-2024-4358
Published
May 29, 2024
Updated
Oct 21, 2025
Vendor
Progress Software Corporation
Product
Telerik Report Server
Classifications
CWE-290, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 13, 2024Exploitation reportedCISA Known Exploited Vulnerabilities Catalog listing
  3. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0.0.0 <10.1.24.514
  2. Affected versionversion=1.0.0 <10.1.24.514

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Progress Software Corporation · Telerik Report Serverversion=1.0.0.0 <10.1.24.514; version=1.0.0 <10.1.24.514

Published CVSS scores

9.8Progress Software CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 20266
Sep 23, 20261
Sep 24, 20261
Sep 25, 20264
Sep 26, 20262
Sep 27, 20263
Sep 28, 20262
Latest reporting daySep 28, 2026
Latest daily unique IPs2
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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