CVE-2025-63687Public exploitNetwork attack vector

Cross-user post deletion via empty Authorization header

Published Nov 7, 2025 · Updated Nov 12, 2025

Incorrect authorization in rymcu forest through commit f782e85 allows remote authenticated users to delete other users' posts. AuthorshipAspect.doBefore permits an empty Authorization header without raising a validation exception, so X-Upload-Token bypasses the ownership check. A registered account and another post's identifier are sufficient to delete that post through the network-facing delete endpoint.

CVSS severity6.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in rymcu forest through commit f782e85 allows remote authenticated users to delete other users' posts. AuthorshipAspect.doBefore permits an empty Authorization header without raising a validation exception, so X-Upload-Token bypasses the ownership check. A registered account and another post's identifier are sufficient to delete that post through the network-facing delete endpoint.

The record

CVE
CVE-2025-63687
Published
Nov 7, 2025
Updated
Nov 12, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1485Data Destruction

Public exploit references

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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