Page generated: 11 Nov 2026, 03:35 UTC
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CVE-2026-54420

LiteSpeed cPanel plugin before 2.4.8 (as distributed in LiteSpeed WHM PlugIn before 5.3.2.0) mishandles symlinks provided by a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS, as exploited in the wild in May 2026.

CVSS 8.5 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.3/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 8.5: +1.27
  • Fresh EPSS: 1.44%: +0.01

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 10 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Security Affairs
Press · 15 Sep 2026, 07:00 · Shared Hosting at Risk: LiteSpeed Enterprise Bug Can Grant Root from a Single Tenant - Security Affairs
The Hacker News
Press · 15 Sep 2026, 07:00 · LiteSpeed Enterprise Flaw Could Let One Hosting Account Gain Root Access on a Shared Server - The Hacker News
The Hacker News
Press · 28 Aug 2026, 07:00 · Critical cPanel Flaw Could Let One Hosting Customer Take Root Control of a Whole Server - The Hacker News
Recorded Future
Press · 10 Jul 2026, 07:00 · June 2026 CVE Landscape - Recorded Future
The Hacker News
Press · 22 Jun 2026, 07:00 · ⚡ Weekly Recap: Browser Bugs, EDR Killers, TV Botnet, OpenBSD Flaw, Android Trojan, and More - The Hacker News
See all 10 source documents
SecurityWeek
Press · 17 Jun 2026, 07:00 · Joomla, LiteSpeed Vulnerabilities Exploited in Attacks - SecurityWeek
The Hacker News
Press · 16 Jun 2026, 07:00 · CISA Flags LiteSpeed cPanel Plugin Flaw Exploited for Root Privilege Escalation - The Hacker News
Security Affairs
Press · 16 Jun 2026, 07:00 · U.S. CISA adds Cisco Catalyst and LiteSpeed cPanel plugin flaws to its Known Exploited Vulnerabilities catalog - Security Affairs
Risky Business Newsletters
Press · 16 Jun 2026, 07:00 · China arrests members of Silver Fox cybercrime group - Risky Business Newsletters
BleepingComputer
Press · 16 Jun 2026, 07:00 · CISA warns of another cPanel plugin flaw exploited in attacks - BleepingComputer

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.3 (2026-11-02 15:14). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
fevar54/CVE-2026-54420-LiteSpeed-Symlink-Exploit01Python18 Jun 2026, 15:23
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 8.5; EPSS 1.4%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, low privileges, no user interaction, additional attack conditions.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 14:00:15.521283+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
14 Jun 2026, 03:23
Added to the CISA KEV catalog
15 Jun 2026, 00:00
First press mention
16 Jun 2026, 07:00
Latest press mention
15 Sep 2026, 07:00
Score calculated
05 Nov 2026, 14:00
PoCs on GitHub
1 repositories