CVE-2023-52045: Studio-42 eLfinder 2.1.62 contains a filename restriction bypass leading to a persistent Cross-site Scripting

Routine

MEDIUM 6.1DOWNGRADE

CVE-2023-52045 is a medium-severity flaw (CVSS 6.1) affecting elfinder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Studio-42 eLfinder 2.1.62 contains a filename restriction bypass leading to a persistent Cross-site Scripting (XSS) vulnerability.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-10-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: std42

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-10-31 19:15 UTCPublished CVE record published
2026-06-17 06:41 UTCUpdated Record last modified

std42 elfinder DOWNGRADE

Affected: 2.1.62

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.62

1. Check installed version

apt-cache policy elfinder || rpm -q elfinder || elfinder --version

2. No fixed release: DOWNGRADE to a release before 2.1.62 (Debian / Ubuntu)

apt-cache madison elfinder sudo apt install elfinder=<VERSION_BEFORE_2.1.62> sudo apt-mark hold elfinder

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list elfinder sudo dnf downgrade elfinder-<VERSION_BEFORE_2.1.62> sudo dnf versionlock add elfinder

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-52045?

elfinder: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-52045 being exploited?

CVE-2023-52045 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-52045 affect?

CVE-2023-52045 affects elfinder. Severity is medium (CVSS 6.1). Studio-42 eLfinder 2.1.62 contains a filename restriction bypass leading to a persistent Cross-site Scripting (XSS) vulnerability.

How urgent is CVE-2023-52045?

Priority 32/100. Public exploit reference

Related CVEs

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CVE-2024-38909 CRITICAL 9.8 DOWNGRADE Studio 42 elFinder 2.1.64 is vulnerable to Incorrect Access Control
CVE-2023-52044 CRITICAL 9.8 DOWNGRADE Studio-42 eLfinder 2.1.62 is vulnerable to Remote Code Execution (RCE) as there is no restriction for uploadin
CVE-2023-35840 MEDIUM 6.5 UPGRADE _joinPath in elFinderVolumeLocalFileSystem.class.php in elFinder before 2.1.62 allows path traversal in the PH
CVE-2022-27115 CRITICAL 9.8 DOWNGRADE In Studio-42 elFinder 2.1.60, there is a vulnerability that causes remote code execution through file name byp

References

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