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CVE-2026-34949— Combodo iTop: Unauthenticated user can delete .readonly file

Quick assessment

Affected
Combodo iTop
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Combodo iTop 是一款基于 Web 的 IT 服务管理工具。在 3.2.3 版本之前，未认证的用户可以删除 iTop 实例中的 .readonly 文件——该文件是在安装过程中创建的，用于防止用户执行写操作。此问题已在 3.2.3 版本中得到修复。

CVSS 6.5 · Medium EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Combodo iTop < 3.2.3 affected
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I. Basic Information for CVE-2026-34949

Vulnerability Information
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Vulnerability Title
Combodo iTop: Unauthenticated user can delete .readonly file
Source: CVE Program / CVE List V5
Vulnerability Description
Combodo iTop is a web based IT service management tool.Prior to 3.2.3, an unauthenticated user could delete the .readonly file on iTop instances — a file created during the setup process that prevents users from performing write actions. This issue has been fixed in version 3.2.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Combodo iTop < 3.2.3 -

II. Public POCs for CVE-2026-34949

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III. Intelligence Information for CVE-2026-34949

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Vendor Advisories for CVE-2026-34949 (1)

Same Patch Batch · Combodo · 2026-08-21 · 18 CVEs total

CVE-2026-33240 8.8 HIGH Combodo iTop: Reflected XSS in foreign key search criteria
CVE-2026-31936 8.8 HIGH Combodo iTop: Unauthorized access to object information via search operation
CVE-2026-34741 8.6 HIGH Combodo iTop: Authentication bypass in exec.php allows PHP file execution
CVE-2026-31880 8.0 HIGH Combodo iTop: Reflected XSS in universal search
CVE-2026-30826 8.0 HIGH Combodo iTop: Reflected XSS in run_query.php
CVE-2026-30890 8.0 HIGH Combodo iTop: Reflected XSS in synchro/synchro_import.php
CVE-2026-31803 8.0 HIGH Combodo iTop: Reflected XSS in tag admin
CVE-2026-34948 7.7 HIGH Combodo iTop: Access control bypass via OQL joins
CVE-2026-27490 7.5 HIGH Combodo iTop: Weak secret generation for inline image
CVE-2026-27462 7.5 HIGH Combodo iTop: User enumeration via password reset
CVE-2026-30866 7.5 HIGH Combodo iTop: Insecured access to uploaded images via sniffed url
CVE-2026-30819 7.3 HIGH Combodo iTop: Reflected XSS in /pages/ajax.render.php dashboard_id parameter
CVE-2026-30865 7.1 HIGH Combodo iTop: Reflected XSS in dashboard save
CVE-2026-34836 6.5 MEDIUM Combodo iTop: Improper access control in ajax.render.php and ajax.document.php
CVE-2026-27463 5.3 MEDIUM Combodo iTop: Version disclosure via login page logo
CVE-2026-33047 4.3 MEDIUM Combodo iTop: Object can be locked by a user without write permissions
CVE-2026-33333 3.5 LOW Combodo iTop: Information disclosure in ajax.render.php

IV. Related Vulnerabilities

Same product: iTop
Same vendor: Combodo
Same weakness: CWE-306

V. Comments for CVE-2026-34949

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