Public proof of conceptFix available

CVE-2023-35840

Q: Is CVE-2023-35840 actively exploited?

A proof-of-concept exploit exists for CVE-2023-35840, but active exploitation has not been confirmed at this time.

Q: What is the CVSS score for CVE-2023-35840?

CVE-2023-35840 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

A public proof of concept exists; no exploitation attested.

Published2023-06-19
Fixed in2.1.62
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

_joinPath in elFinderVolumeLocalFileSystem.class.php in elFinder before 2.1.62 allows path traversal in the PHP LocalVolumeDriver connector.

Timeline

dates in UTC

2023-06-1901:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-35840?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-35840?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Std42 elfinder

Branch	Affected	Fixed in	Source
2.1	< 2.1.62	2.1.62	NVD · OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Std42 elfinder to 2.1.62

Advisories and patches

github.comPatch · Vendor Advisory
github.comVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedafine-com/CVE-2023-35840

Sources

CISA-ADPSSVC decisionpoc2024-12-11
OpenCVESSVC decisionpoc—
CISA-ADPCVSS 3.16.52024-12-11
NVDCVSS 3.16.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-222024-12-11
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score1.9 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Published: 2023-06-19
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-35840?

_joinPath in elFinderVolumeLocalFileSystem.class.php in elFinder before 2.1.62 allows path traversal in the PHP LocalVolumeDriver connector.

Is CVE-2023-35840 actively exploited?

A proof-of-concept exploit exists for CVE-2023-35840, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-35840?

CVE-2023-35840 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Running studio-42/elfinder? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database