CVE-2003-0521

mediumpriority · track · 38EPSS 0.016 · 76 %ileexploit · functionalEUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · functional
Likely / severe?
1.65% (76th) EPSS
CVSS 6.8 · medium
Is it mine?
9 products
Check your exposure
Who says so?
2 sources
enisa_euvd · nvd

EPSS · scored 2026-10-27

Cross-site scripting (XSS) vulnerability in cPanel 6.4.2 allows remote attackers to insert arbitrary HTML and possibly gain cPanel administrator privileges via script in a URL that is logged but not properly quoted when displayed via the (1) Error Log or (2) Latest Visitors screens.

01

cvss

Technical severity, 0–10. One row per scoring source.

6.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4
v2.06.1mediumAV:N/AC:M/Au:N/C:P/I:P/A:P/E:POCsecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USLLM-inferredCWE-79USLLM-inferred
03

exploits (1)

Public proof-of-concept and weaponised exploit code.

04

affected products (9)

Products and version ranges known to be affected.

05

also known as (2)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

enisa_euvdnvdNVDCVE.orgMITRE
published 2003-08-18modified 2026-06-16
07

references (2)

External citations — patches, advisories, analysis.

scry

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