CVE-2021-26030
[20210401] - Core - Escape xss in logo parameter error pages
MEDIUM
6.1
CVSS Score
Published: April 14, 2021 at 05:34 PM UTC
Updated: June 17, 2026 at 03:42 AM UTC
1 product affected across 1 vendorJoomla!
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Severity
MEDIUM6.1
Exploit prediction
EPSS 82%
Description
An issue was discovered in Joomla! 3.0.0 through 3.9.25. Inadequate escaping allowed XSS attacks using the logo parameter of the default templates on error page
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
3.0.0 ≤ v ≤ 3.9.253.0.0-3.9.25
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://developer.joomla.org/security-centre/850-20210401-core-escape-xss-in-logo-parameter-error-pages.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-79
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