Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Network-accessible web app, low complexity; PR:L because any authenticated user exploits it; only integrity impact via unauthorized rejection of revisions.
Primary rating from Vendor (apache).
CVSS VectorVendor: apache
Lifecycle Timeline
3DescriptionCVE.org
Improper Authorization vulnerability in Apache Answer.
This issue affects Apache Answer: through 2.0.1.
Any authenticated user can reject arbitrary pending edit-revisions without review permission due to a missing authorization check on the reject operation. Users are recommended to upgrade to version 2.0.2, which fixes the issue.
AnalysisAI
Improper authorization in Apache Answer through version 2.0.1 allows any authenticated user to reject arbitrary pending edit-revisions without holding review permissions. The missing authorization check on the reject operation means content moderation controls are effectively bypassed by ordinary users, enabling disruption of the peer-review workflow. No public exploit code exists and this vulnerability is not listed in the CISA KEV catalog at time of analysis.
Technical ContextAI
Apache Answer is a Q&A community platform (CPE: cpe:2.3:a:apache_software_foundation:apache_answer). The vulnerability is classified as CWE-863 (Incorrect Authorization), meaning the application performs an authorization check for some operations (e.g., approving revisions) but omits the equivalent check for the reject operation. This is a classic incomplete mediation pattern: the access control enforcement is inconsistently applied across related actions within the same feature, allowing a lesser-privileged user to exercise a capability that should be gated behind a review role.
RemediationAI
Upgrade Apache Answer to version 2.0.2, which corrects the missing authorization check on the reject-revision operation per the vendor advisory at https://lists.apache.org/thread/ogk461yr4w9o95k15bkjxk2kpbkrbnln. If an immediate upgrade is not feasible, a compensating control is to temporarily disable or restrict the edit-revision submission feature so that no pending revisions accumulate that could be improperly rejected. Alternatively, administrators can audit the reject-action audit log to identify and reverse any improperly processed rejections made by non-reviewer accounts. Neither workaround eliminates the authorization gap - patching to 2.0.2 is the only complete fix.
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Same weakness CWE-863 – Incorrect Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-53400
GHSA-47c3-m797-88v2