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CVE-2021-43788

30
FAUCET Score

CVE-2021-43788 is a path traversal vulnerability affecting Nodebb forum software prior to version 1.18.5, allowing authenticated users to access JSON files outside the intended 'languages/' directory. With a CVSS score of 5.0 (MEDIUM), it has a low attack complexity and requires low privileges, potentially leading to limited information disclosure. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.4, <= 1.18.4CPE matchmatch criteria
cpe:2.3:a:nodebb:nodebb:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.0MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
25.84%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2584 is in the 99th percentile among its peer group of 21,958 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: nodebbFixed in: 1.18.5

Vendor Advisories (1)

npmGHSA-pfj7-2qfw-vwgmmedium

NodeBB vulnerable to path traversal in translator module

Nov 30, 2021

References

blog.sonarsource.com / nodebb-remote-code-execution-with-one-shot
ExploitThird Party Advisory
github.com / NodeBB/NodeBB/commit/c8b2fc46dc698db687379106b3f01c71b80f495f
PatchThird Party Advisory
github.com / NodeBB/NodeBB/releases/tag/v1.18.5
Release NotesThird Party Advisory
github.com / NodeBB/NodeBB/security/advisories/GHSA-pfj7-2qfw-vwgm
Third Party Advisory