Dashboard / CVE-2026-21631

CVE-2026-21631

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 47/100
Published: 2026-04-01 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: Passive
S: X
AT: None
VC: High
VI: High
VA: Low

Description

Lack of output escaping leads to a XSS vector in the multilingual associations component.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
joomla joomla\! 3.0.0 – 5.4.4

References & Advisories (2)

Bug Bounty Relevance

47 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

5.9 / 10.0 v4.0
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: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

EPSS — Exploitation Probability

0.22%
Raw Score 0.002200
Percentile 12.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00220
2026-10-28
0.00216

Intelligence Sources

nvd ref →

External Links