CVE-2026-115932

🎯 CVE-2026-115932 🧪 PoC 🇪🇺 EUVD

💬 0 Diskussion 📄 .md Alle CVEs anzeigen ✕

CVE-2026-115932 | When a post is published, Postiz treats a media path that is not a web address as a file on the server's disk, but it does not check that the file lies inside the upload directory. A registered user can store a crafted media path with a post, get it past the checks that normally restrict it, and have the publishing worker read an arbitrary file and send it as an attachment to a Discord server the user controls. The same unconfined reads can be reached throu

When a post is published, Postiz treats a media path that is not a web address as a file on the server's disk, but it does not check that the file lies inside the upload directory. A registered user can store a crafted media path with a post, get it past the checks that normally restrict it, and have the publishing worker read an arbitrary file and send it as an attachment to a Discord server the user controls.

The same unconfined reads can be reached through two further routes. One tells the caller whether a file exists and can exhaust the backend's memory, the other delivers the file the same way as the main route. Self-registration is open by default, so the attacker needs no existing account.

Klassifikation & Betroffenheit:

CWE-22CWE-74 gitroomhq postiz-app 2.23.0 <2.25.3

Improper Limitation of a Pathname to a Restricted Directory 🎯 High

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

🛡️ Empfohlene Mitigation: Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all …

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-64 · Using Slashes and URL Encoding Combined … (High) CAPEC-76 · Manipulating Web Input to File System Ca… (Very High) CAPEC-78 · Using Escaped Slashes in Alternate Encod… (High) CAPEC-79 · Using Slashes in Alternate Encoding (High) CAPEC-126 · Path Traversal (Very High)

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2026-42298 10.0 CVE-2025-61913 10.0 CVE-2025-58321 10.0 CVE-2025-54261 10.0 CVE-2025-9118 10.0

🩹 Patch verfügbar (OSV):

🩹 a5affe62c74e39c1e7ac960d50d8418b807d532c (Commit) 🩹 12db9bd2f428b628a62809669c3d76297e07750a (Commit)

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2026

Veröffentlicht 10/2026

Heute 09.11.

CVSS-Vektor-Analyse: 9.6

AV · Angriffsvektor Netzwerk

AC · Komplexität Gering

PR · Privilegien Gering

UI · Interaktion Keine

S · Scope Verändert

C · Vertraulichkeit Hoch

I · Integrität Hoch

A · Verfügbarkeit Keine

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CNA-Bewertung (postiz): 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Veröffentlicht:24.10.2026

Aktualisiert:02.11.2026 15:17

Assigner (CNA):postiz

EUVD-ID:EUVD-2026-109293

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

CWE-22 ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

Tier	CVEs	Anteil
≥90 %	785	0,2 %
≥50 %	3.559	0,9 %
≥10 %	13.139	3,2 %
<10 %	396.072	95,8 %

Tier

CVEs

Anteil

≥90 %

785

0,2 %

≥50 %

3.559

0,9 %

≥10 %

13.139

3,2 %

<10 %

396.072

95,8 %

9.6 CRITICAL

EPSS

0.4%

CVE-2026-115932 🌐 Netzwerk (Remote) 🔑 Geringe Nutzerrechte nötig

gitroomhq

CVE-2026-115932 | When a post is published, Postiz treats a media path that is not a web address as a file on the server's disk, but it does not check that the file lies inside the upload directory. A registered user can store a crafted media path with a post, get it past the checks that normally restrict it, and have the publishing worker read an arbitrary file and send it as an attachment to a Discord server the user controls. The same unconfined reads can be reached throu

CWE-22 ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

vor 15 Tagen ↻ vor 6 Tagen

🛡️ Details ➔

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