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CVE-2020-13761

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles -...

6.1 MediumFix available

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules allows XSS.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

1.01%Up 0.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.1

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules allows XSS.

Record
CVE-2020-13761
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List No score

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules allows XSS.

Record
CVE-2020-13761
Updated
2026-11-02
EUVDEUVD-2020-5979 No score

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules allows XSS.

Record
EUVD-2020-5979
Updated
2026-11-03
GitHub AdvisoriesGHSA-9fjf-f65j-g25f No score

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles -...

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules allows XSS.

Record
GHSA-9fjf-f65j-g25f
Updated
2026-11-02
OSV 6.1

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules allows XSS.

Record
CVE-2020-13761
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVBIT-joomla-2020-13761 No score

In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules allows XSS.

Record
BIT-joomla-2020-13761
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
joomla
Bitnami
3.0.0 up to 3.9.19
3.9.19

History

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

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

In short

CVE-2020-13761 is a medium vulnerability (CVSS 6.1) in Joomla Joomla\!, published June 2, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.01%, the 63rd percentile. Fixed in joomla 3.9.19.

References

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