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Exploited vulnerability · CISA KEV

Is CVE-2026-48172 exploited? Yes: in CISA KEV since 26 May 2026

Gociux · LiteSpeed cPanel Plugin · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2026-48172, LiteSpeed cPanel Plugin Privilege Escalation Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 26 May 2026, 5 days after it was published. It affects LiteSpeed cPanel Plugin. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 26 May 2026
ransomwareNot knownno confirmed use
EPSStop 5%very likely to be exploited
severity10CVSS 4.0 · critical
US federal due29 May 2026BOD 22-01 deadline

What it is

LiteSpeed cPanel Plugin contains privilege escalation vulnerability that is exposed via the user-end cPanel plugin, which can be abused by any cPanel user account to execute arbitrary scripts with root privileges.

VendorLiteSpeed (2 exploited CVEs in KEV)
ProductcPanel Plugin
VulnerabilityLiteSpeed cPanel Plugin Privilege Escalation Vulnerability
WeaknessCWE-266
Published21 May 2026
Added to KEV26 May 2026
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for cPanel Plugin in your asset inventory, including appliances and cloud images. Stack check lists every exploited LiteSpeed CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 21 May 2026.
  4. Get told next time. Email alerts when CISA adds a CVE for LiteSpeed.

Other exploited CVEs in cPanel Plugin

References

Questions

Is CVE-2026-48172 being exploited?

Yes. CISA added CVE-2026-48172 to the Known Exploited Vulnerabilities catalog on 26 May 2026, which means there is reliable evidence of exploitation in the wild.

Is CVE-2026-48172 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2026-48172?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check LiteSpeed's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected cPanel Plugin and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in May 2026 · LiteSpeed scorecard · act-now radar.

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