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CVE-2026-18276— Missing Authorization in eScriptorium

Quick assessment

Affected
Scripta eScriptorium
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.

Scripta eScriptorium是Scripta团队的一个手写文本识别与标注平台。 Scripta eScriptorium 26.04.1及之前版本存在授权问题漏洞，该漏洞源于websocket消费者缺少授权，远程认证用户可通过join-room消息中的object_cls和object_pk值（未经访问检查传递给group_add）订阅任意文档的事件流，观察其他用户的分割、转录、导入、导出和训练活动。

CVSS 4.3 · Medium EPSS 0.27% · P18

Affected Version Matrix 1

VendorProduct Version RangeStatus
Scripta eScriptorium ≤ 26.4.1 affected
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I. Basic Information for CVE-2026-18276

Vulnerability Information
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Vulnerability Title
Missing Authorization in eScriptorium
Source: CVE Program / CVE List V5
Vulnerability Description
Missing authorization in the websocket consumer in Scripta eScriptorium through 26.04.1 allows a remote authenticated user to subscribe to any document's event stream and observe another user's segmentation, transcription, import, export and training activity via the object_cls and object_pk values of a join-room message, which are passed to group_add without an access check
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Scripta eScriptorium 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Scripta eScriptorium是Scripta团队的一个手写文本识别与标注平台。 Scripta eScriptorium 26.04.1及之前版本存在授权问题漏洞，该漏洞源于websocket消费者缺少授权，远程认证用户可通过join-room消息中的object_cls和object_pk值（未经访问检查传递给group_add）订阅任意文档的事件流，观察其他用户的分割、转录、导入、导出和训练活动。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Scripta eScriptorium 0 ~ 26.4.1 -

II. Public POCs for CVE-2026-18276

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III. Intelligence Information for CVE-2026-18276

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Other References for CVE-2026-18276 (1)

Same Patch Batch · Scripta · 2026-08-06 · 5 CVEs total

CVE-2026-18258 8.8 HIGH Authorization Bypass Through User-Controlled Key in eScriptorium
CVE-2026-18359 8.5 HIGH Server-Side Request Forgery (SSRF) in eScriptorium
CVE-2026-18277 7.1 HIGH Missing Authorization in eScriptorium
CVE-2026-18275 6.5 MEDIUM Authorization Bypass Through User-Controlled Key in eScriptorium

IV. Related Vulnerabilities

Same product: eScriptorium
Same vendor: Scripta
Same weakness: CWE-862

V. Comments for CVE-2026-18276

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