How severe is CVE-2023-53952?

CVE-2023-53952 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-53952 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-53952?

CVE-2023-53952 affects Dotclear. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-53952?

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

Does CVE-2023-53952 have an EU (EUVD) identifier?

Yes. CVE-2023-53952 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204592.

When was CVE-2023-53952 published?

CVE-2023-53952 was published on 2025-12-19 and last updated on 2026-06-17.

CVE-2023-53952

CVE-2023-53952 is a high-severity vulnerability in Dotclear with a CVSS 3.x base score of 8.8. 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-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204592
Weakness: CWE-434
Affected product: Dotclear
Published: 2025-12-19
Last modified: 2026-06-17

Description

Dotclear 2.25.3 contains a remote code execution vulnerability that allows authenticated attackers to upload malicious PHP files with .phar extension through the blog post creation interface. Attackers can upload files containing PHP system commands that execute when the uploaded file is accessed, enabling arbitrary code execution on the server.

Frequently asked questions

What is CVE-2023-53952?: Dotclear 2.25.3 contains a remote code execution vulnerability that allows authenticated attackers to upload malicious PHP files with .phar extension through the blog post creation interface. Attackers can upload files containing PHP system commands that execute when the uploaded file is accessed, enabling arbitrary code execution on the server.
How severe is CVE-2023-53952?: CVE-2023-53952 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-53952 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-53952?: CVE-2023-53952 affects Dotclear. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-53952?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-53952 have an EU (EUVD) identifier?: Yes. CVE-2023-53952 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204592.
When was CVE-2023-53952 published?: CVE-2023-53952 was published on 2025-12-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:dotclear:dotclear:2.25.3:*:*:*:*:*:*:*

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CVE-2005-3957 — Critical (CVSS 10.0): Unspecified vulnerability in the Trackback functionality in DotClear 1.2.1 has unknown impact and attack vectors.
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