What is the CVSS score of CVE-2026-62843?

CVE-2026-62843 has a CVSS 3.1 base score of 6.8 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N. EPSS exploitation probability: 0.3%.

Is there a public PoC exploit available for CVE-2026-62843?

Yes, a public proof-of-concept exploit is available for CVE-2026-62843. Prioritise patching immediately. EPSS: 0.3%.

Is there a patch available for CVE-2026-62843?

Yes, a patch is available for CVE-2026-62843. Update the affected software to the latest version immediately.

Filebrowser CVE-2026-62843

EUVD-2026-44707 MEDIUM

Path Traversal (CWE-22)

2026-07-15 GitHub_M

GHSA-83xp-526h-j3ww

Path Traversal Filebrowser Suse

6.8

CVSS 3.1 · Vendor: GitHub_M

View

Vulnerability Assessment

Weakness

CWE

CWE-22

OWASP Top 10:2025

A01:2025 - Broken Access Control

ASVS 5.0

V5 - File Handling Path canonicalization, traversal prevention

MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 15, 2026

Zip-slip path traversal in File Browser 2.63.6–2.63.16 allows a low-privileged user with upload permission to plant a POSIX backslash-named file that the archive builder incorrectly normalizes into a directory traversal sequence, enabling arbitrary file write on any victim who downloads and extracts the generated archive. The root cause is the server-side conversion of \ to / in archive entry names, which manufactures paths like ../../evil.sh from the legal POSIX filename ..\..\evil.sh. No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV; however, the attack chain is straightforward for any user with upload access.

Affected VersionsENISA

filebrowser 2.63.6, < 2.63.17

Affected Packages

go github.com/filebrowser/filebrowser no fix

go github.com/filebrowser/filebrowser/v2 fix: 2.63.17

euvd filebrowser_2_63_6 fix: 2.63.17

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 3 packages in go, euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (GitHub_M) PRIMARY 6.8 MEDIUM

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

SUSE MEDIUM

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Patch available

Jul 15, 2026 - 17:48 EUVD

DescriptionCVE.org

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAll(nameInArchive, "\", "/"), which turns a POSIX filename such as ..\..\evil.sh into the archive entry ../../evil.sh, allowing a user with upload permission to plant a backslash-named file that escapes the extraction directory when another user downloads and extracts the generated zip or tar archive. This issue is fixed in version 2.63.17.

Threat Intelligence Overview

EPSS Score

0.3%

Top 83% exploitable

Threat Intel

1 sources

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment GHSA Vendor

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC Yes

EPSS 0.3%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation

Poc

System Exposure· derived

Open

Automatable

Human Impact· derived

Medium

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +34

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Path Traversal HIGH

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

More in Filebrowser

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CVE-2026-29188 CRITICAL Act Now POC

9.1 Mar 05

Unauthorized file operations in File Browser before fix. PoC and patch available.

CVE-2023-39612 CRITICAL Act Now POC

9.0 Sep 16

A cross-site scripting (XSS) vulnerability in FileBrowser before v2.23.0 allows an authenticated attacker to escalate pr

CVE-2026-116682 HIGH This Week POC

8.6 Oct 27

Symlink-following read paths in FileBrowser Quantum serve files from outside a user's assigned scope: download, preview,

CVE-2026-73612 HIGH This Week POC

8.6 Aug 13

Recursive operation authorization bypass in File Browser before v2.63.22 permits any authenticated user to copy, rename,

CVE-2026-25890 HIGH This Week POC

8.1 Feb 09

Path normalization bypass in Filebrowser prior to 2.57.1 allows authenticated users to circumvent file access restrictio

CVE-2025-52903 HIGH This Week POC

8.0 Jun 26

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ

CVE-2025-52904 HIGH This Week POC

8.0 Jun 26

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ

CVE-2025-52995 HIGH This Week POC

8.0 Jun 30

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ

CVE-2026-54910 HIGH This Week POC

7.7 Jul 20

Arbitrary file read in FileBrowser Quantum (gtsteffaniak/filebrowser) before 1.4.3-beta lets any authenticated user, reg

CVE-2026-73611 HIGH This Week POC

7.6 Aug 13

File Browser versions 2.50.0 through 2.63.21 permit indefinite session persistence via expired JWT tokens when proxy aut

CVE-2025-52902 HIGH This Week POC

7.6 Jun 26

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ

CVE-2026-73613 HIGH This Week POC

7.2 Aug 13

Arbitrary file deletion in filebrowser before 2.63.19 allows authenticated users holding only Create permission to delet

Same weakness CWE-22 – Path Traversal

View all

CVE-2019-3396 CRITICAL POC

9.8

CVE-2019-19781 CRITICAL POC

9.8

CVE-2020-5902 CRITICAL POC

9.8

CVE-2021-21972 CRITICAL POC

9.8

CVE-2021-40444 HIGH POC

8.8

CVE-2022-41352 CRITICAL POC

9.8

CVE-2021-27065 HIGH POC

7.8

CVE-2019-11510 CRITICAL POC

10.0

Same technique Path Traversal

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CVE-2018-20250 HIGH POC

7.8

CVE-2022-37042 CRITICAL POC

9.8

CVE-2025-64446 CRITICAL POC

9.8

Vendor StatusVendor

SUSE

Severity: Moderate

Product	Status
SUSE Linux Enterprise Server 16.1	Affected
SUSE Linux Enterprise Server for SAP applications 16.1	Affected
SUSE Linux Enterprise Module for Package Hub 15 SP5	Affected
SUSE Linux Enterprise Module for Package Hub 15 SP6	Affected
openSUSE Leap 15.5	Affected

References

Advisories & patches

REF https://github.com/filebrowser/filebrowser/commit/8503ba61ff51d48a7313896483d130eb6a5abfe0 REF https://github.com/filebrowser/filebrowser/releases/tag/v2.63.17 REF https://github.com/filebrowser/filebrowser/security/advisories/GHSA-83xp-526h-j3ww

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