Security readout for executives and security teams
Plain-English summary
CVE-2025-65518 is a remotely reachable denial-of-service issue in Plesk Obsidian. The source bundle says a crafted unauthenticated request to get_password.php can make the web interface continuously reload, blocking legitimate administration access. The impact is availability, not confirmed data theft or code execution.
Executive priority
Treat this as high priority for hosting environments because it can remove administrator access without authentication. Prioritize externally reachable Plesk panels, especially where outages would affect customer operations, incident response, or service provisioning.
Technical view
The reported flaw affects Plesk Obsidian versions 8.0.1 through 18.0.73 and is mapped to CWE-400 and CWE-606. CVSS 3.1 is 7.5, network exploitable, low complexity, no privileges or user interaction, with high availability impact only.
Likely exposure
Internet-exposed Plesk Obsidian administrative interfaces in the stated version range are the primary concern. The CVE record’s affected-product metadata is incomplete, so teams should verify exposure directly against their Plesk inventory and vendor release notes.
Exploitation context
The bundle describes remote unauthenticated exploitation causing persistent interface unavailability. It does not cite CISA KEV listing or active exploitation evidence. A public GitHub reference is listed, so defenders should assume details may be discoverable, without treating exploitation as confirmed in the wild.
Researcher notes
Evidence supports a web-interface availability flaw, but not confidentiality or integrity impact. The affected-product metadata in the bundle is incomplete, and no specific fixed version is named here. Avoid assuming broader Plesk components or exploit activity without vendor or KEV confirmation.
Mitigation direction
- Check Plesk release notes and advisories for the fixed version.
- Upgrade affected Plesk Obsidian instances when vendor guidance confirms remediation.
- Restrict internet access to Plesk administrative interfaces where feasible.
- Monitor for repeated requests to get_password.php and availability degradation.
- Escalate hosting-control-plane outages as business-impacting incidents.
Validation and detection
- Inventory Plesk Obsidian versions across managed hosting infrastructure.
- Confirm whether any instance is within versions 8.0.1 through 18.0.73.
- Identify Plesk interfaces reachable from the public internet.
- Review web logs for suspicious get_password.php request patterns.
- Verify administrative UI availability after mitigation or upgrade.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-400: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-606: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-65518 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6redhat-SADPVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- ADP timelineredhat-SADP
Made public.
- CVE publishedCVE Program
The CVE record was published.
- ADP timelineredhat-SADP
Reported to Red Hat.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2026-01-08T19:01:09.861Z: Reported to Red Hat.
- 2026-01-08T00:00:00.000Z: Made public.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/Jainil-89/CVE-2025-65518/blob/main/cve.mdCVE reference, mitre
- https://docs.plesk.com/release-notes/obsidian/change-log/CVE reference, mitre
- https://access.redhat.com/security/cve/CVE-2025-65518CVE reference, redhat-SADP · vdb-entry, x_refsource_REDHAT
- RHBZ#2428098CVE reference, redhat-SADP · issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-65518.jsonCVE reference, redhat-SADP · x_sadp-csaf-vex
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Unchecked Input for Loop Condition
Unchecked Input for Loop Condition represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.