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CVE-2026-119661— ShowDoc through 3.9.5 Authorization Bypass via paramDescLib deleteEntries

Quick assessment

Affected
star7th ShowDoc
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.

ShowDoc 3.9.5 及更早版本在 接口中存在一个权限绕过漏洞。该接口仅对传入的第一个条目 ID 检查编辑权限。已认证的攻击者可以将自己的条目 ID 置于首位，并在其后附加其他用户的条目 ID，从而永久删除这些参数描述条目。

CVSS 4.2 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
star7th ShowDoc ≤ 3.9.5 affected
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I. Basic Information for CVE-2026-119661

Vulnerability Information
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Vulnerability Title
ShowDoc through 3.9.5 Authorization Bypass via paramDescLib deleteEntries
Source: CVE Program / CVE List V5
Vulnerability Description
ShowDoc through 3.9.5 contains an authorization bypass vulnerability in the api/paramDescLib/deleteEntries endpoint that checks edit permission only for the first supplied entry id. Authenticated attackers can place their own entry id first and append other users' entry ids to permanently delete those parameter-description entries.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
star7th ShowDoc 0 ~ 3.9.5 -

II. Public POCs for CVE-2026-119661

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-119661

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Patches & Fixes for CVE-2026-119661 (1)

Vendor Advisories for CVE-2026-119661 (1)

Security Blog Posts for CVE-2026-119661 (1)

Vendor Pages for CVE-2026-119661 (1)

Other References for CVE-2026-119661 (1)

IV. Related Vulnerabilities

Same product: ShowDoc
Same vendor: star7th
Same weakness: CWE-639