CVE-2020-10242
An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the...
An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript allows XSS attacks.
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
What each source reports
NVD Score used
An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript allows XSS attacks.
- Record
CVE-2020-10242- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript allows XSS attacks.
- Record
CVE-2020-10242- Updated
- 2026-11-02
EUVDEUVD-2020-2697 No score
An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript allows XSS attacks.
- Record
EUVD-2020-2697- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8r68-cp3x-ghpf No score
An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the...
An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript allows XSS attacks.
- Record
GHSA-8r68-cp3x-ghpf- Updated
- 2026-11-02
OSV
An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript allows XSS attacks.
- Record
CVE-2020-10242- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVBIT-joomla-2020-10242 No score
An issue was discovered in Joomla! before 3.9.16. Inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript allows XSS attacks.
- Record
BIT-joomla-2020-10242- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
joomlaBitnami |
3.0.0 up to 3.9.16 | 3.9.16 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-10242 is a medium vulnerability (CVSS 6.1) in Joomla Joomla\!, published March 16, 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 3.9.16.