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CVE-2024-21730

[20240702] - Core - Self-XSS in fancyselect list field layout

5.4 MediumFix available

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

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.42%Up 0.4 points since Jul 10, 2024
90%50%10%1%

What each source reports

NVD Score used 5.4

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

Record
CVE-2024-21730
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List 5.4

[20240702] - Core - Self-XSS in fancyselect list field layout

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

Record
CVE-2024-21730
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2024-19346 5.4

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

Record
EUVD-2024-19346
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-qcq9-h9hg-5pq2 5.4

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.

Record
GHSA-qcq9-h9hg-5pq2
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 5.4

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

Record
CVE-2024-21730
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVBIT-joomla-2024-21730 No score

[20240702] - Core - Self-XSS in fancyselect list field layout

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

Record
BIT-joomla-2024-21730
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
joomla
Bitnami
4.0.0 up to 5.1.2
5.1.2

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-21730 is a medium vulnerability (CVSS 5.4) in Joomla Joomla\!, published July 9, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. Fixed in joomla 5.1.2.

References

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