CVE-2026-33954

LinkAce is a self-hosted archive to collect website links. In versions prior to 2.5.3, a private note attached to a non-private link can be disclosed to a different authenticated user via the web interface. The API appears to correctly enforce note visibility, but the web link detail page renders notes without applying equivalent visibility filtering. As a result, an authenticated user who is allowed to view another user's `internal` or `public` link can read that user's `private` notes attached to the link. Version 2.5.3 patches the issue.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Kovah/LinkAce/security/advisories/GHSA-88h3-cq25-vw8q	Exploit Vendor Advisory
https://github.com/Kovah/LinkAce/security/advisories/GHSA-88h3-cq25-vw8q	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:linkace:linkace:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-27 22:16

Updated : 2026-06-17 10:38

NVD link : CVE-2026-33954

Mitre link : CVE-2026-33954

CVE.ORG link : CVE-2026-33954

JSON object : View

Products Affected

linkace

linkace

CWE

CWE-285

Improper Authorization

{"id": "CVE-2026-33954", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33954", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-27T21:57:28.740443Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "Kovah", "product": "LinkAce", "versions": [{"status": "affected", "version": "< 2.5.3"}]}]}], "published": "2026-03-27T22:16:21.917", "references": [{"url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-88h3-cq25-vw8q", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-88h3-cq25-vw8q", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-285"}]}], "descriptions": [{"lang": "en", "value": "LinkAce is a self-hosted archive to collect website links. In versions prior to 2.5.3, a private note attached to a non-private link can be disclosed to a different authenticated user via the web interface. The API appears to correctly enforce note visibility, but the web link detail page renders notes without applying equivalent visibility filtering. As a result, an authenticated user who is allowed to view another user's `internal` or `public` link can read that user's `private` notes attached to the link. Version 2.5.3 patches the issue."}], "lastModified": "2026-06-17T10:38:21.817", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:linkace:linkace:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5085A4DA-FF49-40D4-84A3-AFAFEC3902FC", "versionEndExcluding": "2.5.3"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}