Home/CVE/The fancyselect list field layout does not correctly escape inputs, leading to a self-XSS vector.
CVE

CVE-2024-21730

The fancyselect list field layout does not correctly escape inputs, leading to a self-XSS vector.

The fancyselect list field layout does not correctly escape inputs, leading to a self-XSS vector.

MEDIUM · CVSS 5.4 EPSS 0.00038
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

2
joomla joomla\!>= 4.0.0 and < 4.4.6
joomla joomla\!>= 5.0.0 and < 5.1.2
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v3.1 · security@joomla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Jul 2024 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://developer.joomla.org/security-centre/936-20240702-core-self-xss-in-fancyselect-list-field-layout.htmlVendor Advisory
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