CVE-2018-6377
In Joomla! before 3.8.4, inadequate input filtering in com_fields leads to an XSS vulnerability in multiple field types, i.e., list, radio, and checkbox
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 56.5%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
In Joomla! before 3.8.4, inadequate input filtering in com_fields leads to an XSS vulnerability in multiple field types, i.e., list, radio, and checkbox
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 56.50% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- joomla/joomla\!
- Source
- cve@mitre.org
EPSS moved from 35.0% on 21 September 2026 to 56.5% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securityfocus.com/bid/102917Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040316Third Party Advisory, VDB Entry
- https://developer.joomla.org/security-centre/720-20180103-core-xss-vulnerability.htmlVendor Advisory
- http://www.securityfocus.com/bid/102917Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040316Third Party Advisory, VDB Entry
- https://developer.joomla.org/security-centre/720-20180103-core-xss-vulnerability.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.