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CVE-2021-46398

42
FAUCET Score

CVE-2021-46398 is a Cross-Site Request Forgery (CSRF) vulnerability in Filebrowser versions prior to 2.18.0. An attacker can exploit this by tricking an authenticated user into visiting a malicious webpage, leading to the creation of a backdoor administrator account and subsequent Remote Code Execution (RCE) on the underlying system. This vulnerability carries a high CVSS score of 8.8, indicating a critical impact with high confidentiality, integrity, and availability compromise, requiring user interaction but no prior authentication. While not listed in CISA's KEV catalog and showing no active community discussion or media coverage, a public exploit (EDB-50717) exists, demonstrating its exploitability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.18.0CPE matchmatch criteria
cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
6.66%
Probability of exploitation in next 30 days
EPSS Percentile
93.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50717 · Feb 8, 2022
This CVE's current EPSS score of 0.0666 is in the 93rd percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/filebrowser/filebrowser/v2Fixed in: 2.18.0

Vendor Advisories (1)

goGHSA-72wf-hwcq-65h9high

Cross-Site Request Forgery in Filebrowser

Feb 5, 2022

References

packetstormsecurity.com / files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.html
ExploitThird Party AdvisoryVDB Entry
febin0x4e4a.blogspot.com / 2022/01/critical-csrf-in-filebrowser.html
ExploitThird Party Advisory
febin0x4e4a.wordpress.com / 2022/01/19/critical-csrf-in-filebrowser
ExploitThird Party Advisory
febinj.medium.com / critical-csrf-to-rce-in-filebrowser-865a3c34b8e7
ExploitThird Party Advisory
github.com / filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8d
PatchThird Party Advisory
systemweakness.com / critical-csrf-to-rce-in-filebrowser-865a3c34b8e7
ExploitThird Party Advisory