CVE-2026-18275: CWE-639: Authorization Bypass Through User-Controlled Key in Scripta eScriptorium
CVE-2026-18275 is an authorization bypass vulnerability in Scripta eScriptorium up to version 26.04.1. It allows a remote authenticated user to overwrite other users' document parts by exploiting improper queryset restrictions in the serializers handling process and annotation taxonomy. This issue arises because the queryset restriction was applied to the ManyRelatedField instead of its child_relation, rendering the restriction ineffective.
AI Analysis
Technical Summary
The vulnerability in Scripta eScriptorium involves an authorization bypass through user-controlled keys in the process and annotation taxonomy serializers. Specifically, a remote authenticated user can supply part primary keys to a many=True related field whose queryset restriction was incorrectly applied to the ManyRelatedField rather than its child_relation. This flaw allows the attacker to run segmentation and transcription operations on document parts belonging to other users, effectively overwriting their content. The issue affects versions through 26.04.1, with no patch or remediation level currently stated.
Potential Impact
An authenticated user can overwrite content in other users' document parts, impacting data integrity. There is no confidentiality or availability impact reported. The vulnerability could lead to unauthorized modification of document data within the application.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been stated. Until a patch is available, restrict access to trusted authenticated users and monitor for unusual modification activity related to document parts.
CVE-2026-18275: CWE-639: Authorization Bypass Through User-Controlled Key in Scripta eScriptorium
Description
CVE-2026-18275 is an authorization bypass vulnerability in Scripta eScriptorium up to version 26.04.1. It allows a remote authenticated user to overwrite other users' document parts by exploiting improper queryset restrictions in the serializers handling process and annotation taxonomy. This issue arises because the queryset restriction was applied to the ManyRelatedField instead of its child_relation, rendering the restriction ineffective.
CVSS v3.1
Score 6.5medium
Affected software
Scripta
eScriptorium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Scripta eScriptorium involves an authorization bypass through user-controlled keys in the process and annotation taxonomy serializers. Specifically, a remote authenticated user can supply part primary keys to a many=True related field whose queryset restriction was incorrectly applied to the ManyRelatedField rather than its child_relation. This flaw allows the attacker to run segmentation and transcription operations on document parts belonging to other users, effectively overwriting their content. The issue affects versions through 26.04.1, with no patch or remediation level currently stated.
Potential Impact
An authenticated user can overwrite content in other users' document parts, impacting data integrity. There is no confidentiality or availability impact reported. The vulnerability could lead to unauthorized modification of document data within the application.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been stated. Until a patch is available, restrict access to trusted authenticated users and monitor for unusual modification activity related to document parts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-07-29T17:05:28.661Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a74ab40bf8831d539ec7454
Added to database: 08/06/2026, 15:41:52 UTC
Last enriched: 08/13/2026, 17:01:35 UTC
Last updated: 09/21/2026, 22:01:32 UTC
Views: 51
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