How severe is CVE-2023-54335?

CVE-2023-54335 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-54335 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-54335?

CVE-2023-54335 affects Extplorer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-54335?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2023-54335 have an EU (EUVD) identifier?

Yes. CVE-2023-54335 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2584.

When was CVE-2023-54335 published?

CVE-2023-54335 was published on 2026-01-13 and last updated on 2026-06-17.

CVE-2023-54335

CVE-2023-54335 is a critical-severity vulnerability in Extplorer with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2584
Weakness: CWE-306
Affected product: Extplorer
Published: 2026-01-13
Last modified: 2026-06-17

Description

eXtplorer 2.1.14 contains an authentication bypass vulnerability that allows attackers to login without a password by manipulating the login request. Attackers can exploit this flaw to upload malicious PHP files and execute remote commands on the vulnerable file management system.

Frequently asked questions

What is CVE-2023-54335?: eXtplorer 2.1.14 contains an authentication bypass vulnerability that allows attackers to login without a password by manipulating the login request. Attackers can exploit this flaw to upload malicious PHP files and execute remote commands on the vulnerable file management system.
How severe is CVE-2023-54335?: CVE-2023-54335 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-54335 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-54335?: CVE-2023-54335 affects Extplorer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-54335?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2023-54335 have an EU (EUVD) identifier?: Yes. CVE-2023-54335 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2584.
When was CVE-2023-54335 published?: CVE-2023-54335 was published on 2026-01-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:extplorer:extplorer:*:*:*:*:*:*:*:*

More vulnerabilities in Extplorer

CVE-2012-6710 — Critical (CVSS 9.8): ext_find_user in eXtplorer through 2.1.2 allows remote attackers to bypass authentication via a password[]= (aka an…
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CVE-2023-27842 — High (CVSS 8.8): Insecure Permissions vulnerability found in Extplorer File manager eXtplorer v.2.1.15 allows a remote attacker to…
CVE-2016-4313 — High (CVSS 7.8): Directory traversal vulnerability in unzip/extract feature in eXtplorer 2.1.9 allows remote attackers to execute…
CVE-2017-12756 — High (CVSS 7.2): Command inject in transfer from another server in extplorer 2.1.9 and prior allows attacker to inject command via the…
CVE-2015-5660 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in eXtplorer before 2.1.8 allows remote attackers to hijack the…

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