How severe is CVE-2025-65518?

CVE-2025-65518 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-65518 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-65518?

CVE-2025-65518 affects Webpros Plesk Obsidian. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-65518?

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-2025-65518 have an EU (EUVD) identifier?

Yes. CVE-2025-65518 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1436.

When was CVE-2025-65518 published?

CVE-2025-65518 was published on 2026-01-08 and last updated on 2026-07-05.

CVE-2025-65518

CVE-2025-65518 is a high-severity vulnerability in Webpros Plesk Obsidian with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1436
Weakness: CWE-400
Affected product: Webpros Plesk Obsidian
Published: 2026-01-08
Last modified: 2026-07-05

Description

Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS) condition. The vulnerability exists in the get_password.php endpoint, where a crafted request containing a malicious payload can cause the affected web interface to continuously reload, rendering the service unavailable to legitimate users. An attacker can exploit this issue remotely without authentication, resulting in a persistent availability impact on the affected Plesk Obsidian instance.

Frequently asked questions

What is CVE-2025-65518?: Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS) condition. The vulnerability exists in the get_password.php endpoint, where a crafted request containing a malicious payload can cause the affected web interface to continuously reload, rendering the service unavailable to legitimate users. An attacker can exploit this issue remotely without authentication, resulting in a persistent availability impact on the affected Plesk Obsidian instance.
How severe is CVE-2025-65518?: CVE-2025-65518 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-65518 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-65518?: CVE-2025-65518 affects Webpros Plesk Obsidian. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-65518?: 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-2025-65518 have an EU (EUVD) identifier?: Yes. CVE-2025-65518 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1436.
When was CVE-2025-65518 published?: CVE-2025-65518 was published on 2026-01-08 and last updated on 2026-07-05.

References

EU advisories (EUVD)

http://plesk.com

Affected products (1)

cpe:2.3:a:webpros:plesk_obsidian:*:*:*:*:*:*:*:*

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