Plesk is a widely deployed hosting control panel; authenticated RCE to root can fully compromise servers and hosting environments and impact many customers.
CVE-2026-68492
Authenticated remote root RCE in Plesk via RESTful API extension.
Is CVE-2026-68492 being exploited?
Not confirmed. CVE-2026-68492 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.65% probability of exploitation in the next 30 days.
How severe is CVE-2026-68492?
CVE-2026-68492 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-68492?
Yes. A fix has been recorded for CVE-2026-68492. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-68492 affect?
CVE-2026-68492 affects Plesk 18.0.34 before 18.0.80.8, Plesk 18.0.81 before 18.0.81.1, Plesk RESTful API extension 2.4.2 before 2.4.7. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-68492?
Upgrade Plesk and RESTful API extension to fixed versions; restrict admin access and rotate credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated remote attackers can execute arbitrary code as root, leading to full server compromise and data/control loss.
Immediate action required
- affected>= 18.0.34 and < 18.0.80.8
- affected>= 18.0.81 and < 18.0.81.1
- affected>= 2.4.2 and < 2.4.7
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
cisa ssvc
- exploitation
- none
- automatable
- no
- technical impact
- total
Assessed by CISA 24 Sept 2026 (SSVC 2.0.3).
timeline
- 23 Sept 2026Published
- 24 Sept 2026CISA SSVC assessment: exploitation none · 1 day later
- 24 Sept 2026CVE record last updated · same day later
- 26 Sept 2026Analysed by vulneraibility.com · 2 days later
- Linksupport.plesk.com /hc/en-us/articles/43644058632983
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.