Threats / LiteSpeed / CVE-2026-48172
CVE-2026-48172
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
LiteSpeed cPanel Plugin vulnerability
LiteSpeed cPanel Plugin contains a privilege escalation vulnerability allowing any cPanel user to execute arbitrary scripts with root privileges.
Verdict
Today item — known-exploited.
A privilege escalation flaw in LiteSpeed's cPanel Plugin permits unprivileged cPanel users to gain root-level code execution. Active exploitation in the wild increases operational risk for hosting providers and their customers.
CISA KEV Yes · 2026-05-265EPSS 0.18914 (verify live)6Exploit Weaponized · public PoC7CVSS 103CISA SSVC Exploitation: active · Automatable: yes · Impact: total4
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
5 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-05-26).
Probability (EPSS)
EPSS 0.18914 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 10 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H) · Affected: LiteSpeed, cPanel Plugin. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 4.0, set at disclosure.
Weakness (CWE)
Mapped to CWE-266 CWE-266 — weakness family: Authorization / access control.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: yes · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 5 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I authenticate as an unprivileged cPanel user account on a shared hosting environment.
Business
Hosting provider loses isolation guarantees between customer accounts, exposing all hosted services to compromise.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I invoke the vulnerable cPanel plugin interface to escalate my privileges to root.
Business
Attacker gains administrative control over the entire server, enabling data theft, malware deployment, and service disruption.
3
Lateral reach — past segmentation narrative 3
Attacker
I execute arbitrary scripts with root privileges to establish persistence and lateral movement.
Business
Compromise spreads across multiple customer accounts and infrastructure, requiring incident response, forensics, and potential customer notification.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05