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CVE-2026-109203— LogicalDOC Community Edition through 9.3 Missing Authorization via ConvertPdf Servlet

Quick assessment

Affected
LogicalDOC LogicalDOC Community Edition
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.

LogicalDOC 社区版 9.3 及之前版本中存在一个缺失授权漏洞，位于 ConvertPdf servlet 中，允许已认证用户下载受限的 PDF 文档。攻击者可以枚举连续的 docId 值，并利用 version 参数从无法访问的文件夹中获取任何 PDF 及其版本。

CVSS 6.5 · Medium EPSS 0.24% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
LogicalDOC LogicalDOC Community Edition ≤ 9.3 affected
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I. Basic Information for CVE-2026-109203

Vulnerability Information
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Vulnerability Title
LogicalDOC Community Edition through 9.3 Missing Authorization via ConvertPdf Servlet
Source: CVE Program / CVE List V5
Vulnerability Description
LogicalDOC Community Edition through 9.3 contains a missing authorization vulnerability in the ConvertPdf servlet that allows authenticated users to download restricted PDF documents. Attackers can enumerate sequential docId values and use the version parameter to retrieve any PDF and its versions from folders they cannot access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
LogicalDOC LogicalDOC Community Edition 0 ~ 9.3 -

II. Public POCs for CVE-2026-109203

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-109203

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Vendor Advisories for CVE-2026-109203 (2)

Vendor Pages for CVE-2026-109203 (1)

Other References for CVE-2026-109203 (1)

Same Patch Batch · LogicalDOC · 2026-10-12 · 10 CVEs total

CVE-2026-109199 8.8 HIGH LogicalDOC Community Edition through 9.3 Code Injection via Velocity sendAsEmail Template
CVE-2026-109201 8.3 HIGH LogicalDOC Community Edition through 9.3 Missing Authorization in DocumentService
CVE-2026-109205 7.5 HIGH LogicalDOC Community Edition through 9.3 Unauthenticated Upload Disk Exhaustion via Upload
CVE-2026-109170 6.5 MEDIUM LogicalDOC Community Edition through 9.3 HQL Injection via documents.xml indexed Parameter
CVE-2026-109169 6.5 MEDIUM LogicalDOC Community Edition through 9.3 SQL Injection via tags.xml firstLetter
CVE-2026-109202 6.5 MEDIUM LogicalDOC Community Edition through 9.3 Missing Authorization via zip-export Servlet
CVE-2026-109200 6.4 MEDIUM LogicalDOC Community Edition through 9.3 SSRF via XMLConverter xml-stylesheet href
CVE-2026-109204 6.3 MEDIUM LogicalDOC Community Edition through 9.3 Forced Password Reset via Unbound PswRecovery Tic
CVE-2026-109206 5.3 MEDIUM LogicalDOC Community Edition through 9.3 Username Enumeration via AvatarServlet

IV. Related Vulnerabilities

Same product: LogicalDOC Community Edition
Same vendor: LogicalDOC
Same weakness: CWE-862

V. Comments for CVE-2026-109203

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