Quick answers
- Is CVE-2025-65518 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2025-65518 being exploited in the wild.
- How severe is CVE-2025-65518?
- High severity, with a CVSS score of 7.5, published 8 January 2026.
- Which products and versions are affected?
- Plesk Obsidian 8.0.1 through 18.0.73.
- Is there a fix for CVE-2025-65518?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2025-65518 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2025-65518?
- Check whether you run Plesk Obsidian or WebPros Plesk Obsidian at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A Denial of Service (DoS) vulnerability exists in the get_password.php endpoint of Plesk Obsidian (versions 8.0.1 to 18.0.73). The flaw is categorized under CWE-400 (Uncontrolled Resource Consumption) and CWE-606 (Unchecked Input for Loop Condition). An unauthenticated remote attacker can send a crafted request containing a malicious payload that causes the web interface to enter an infinite reload loop, characterized by continuous 'Bad Request' responses. This effectively locks users out of the web-based management console. The issue is addressed in Plesk Obsidian version 18.0.74 and later.
Affected products
- Plesk Plesk Obsidian 8.0.1 through 18.0.73
Timeline
- 2026-01-08: disclosed
- 2026-01-08: advisory: NVD publication date
References
- http://plesk.com/
- https://docs.plesk.com/release-notes/obsidian/change-log/
- https://github.com/Jainil-89/CVE-2025-65518/blob/main/cve.md
- https://access.redhat.com/security/cve/CVE-2025-65518
- https://bugzilla.redhat.com/show_bug.cgi?id=2428098
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-65518.json