CVE-2026-18258Network attack vector

Cross-user content access and tampering via unscoped queries

Published Aug 6, 2026 · Updated Aug 6, 2026

Authorization bypass in Scripta eScriptorium before 26.04.2 lets remote authenticated users read, write, or delete others' transcription content. The Line, LineTranscription, VirtualCollection, tag, and process API endpoints query body-supplied primary keys through global model managers instead of request-scoped querysets. Any authenticated account can therefore evade object-ownership filters and directly read, change, or remove another user's transcription records.

CVSS severity8.8
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Scripta eScriptorium before 26.04.2 lets remote authenticated users read, write, or delete others' transcription content. The Line, LineTranscription, VirtualCollection, tag, and process API endpoints query body-supplied primary keys through global model managers instead of request-scoped querysets. Any authenticated account can therefore evade object-ownership filters and directly read, change, or remove another user's transcription records.

The record

CVE
CVE-2026-18258
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
Scripta
Product
eScriptorium
Classifications
CWE-639, T1565.001, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <=26.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Scripta · eScriptoriumversion=0 <=26.4.1

Published CVSS scores

8.8GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1565.001Stored Data Manipulation
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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