CVE-2021-26030 — MEDIUM (6.1)

Q: What is CVE-2021-26030?

CVE-2021-26030 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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

Q: How severe is CVE-2021-26030?

CVE-2021-26030 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-26030?

Check the references section above for vendor advisories and patch information. Affected products include: Joomla Joomla\!.

Vulnerability 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

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Joomla	Joomla\!	>= 3.0.0, <= 3.9.25

Related Weaknesses (CWE)

CWE-79

References

https://developer.joomla.org/security-centre/850-20210401-core-escape-xss-in-logVendor Advisory
https://developer.joomla.org/security-centre/850-20210401-core-escape-xss-in-logVendor Advisory

FAQ

What is CVE-2021-26030?

CVE-2021-26030 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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

How severe is CVE-2021-26030?

CVE-2021-26030 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-26030?

Check the references section above for vendor advisories and patch information. Affected products include: Joomla Joomla\!.