CVE-2025-63083: joomla! project joomla! cms Cross-site Scripting
CVSS: 6.1v3.1MediumAnalyzed
Published 06-01-2026Last modified 06-01-2026
Vulnerability summary
CVE-2025-63083 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in joomla! project joomla! cms. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 06-01-2026PublishedVulnerability first disclosed.
- 06-01-2026Last modifiedVulnerability information updated.
Description
Lack of output escaping leads to a XSS vector in the pagebreak plugin.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.9Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:USourcesAll 2 agree
- NVDNIST5.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Medium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
11%
Versus all other CVEs
30-day change
0.00 pp
From 0.21% on 22-09-2026
22-09-202622-10-2026
EPSS score0.21%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Joomla1 product
- joomla\!≥ 3.9.0, < 5.4.2 | ≥ 6.0.0, < 6.0.2
Joomla! project1 product
- joomla! cms3.9.0-5.4.1 | 6.0.0-6.0.1
2 vendors · 2 products