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CVE-2021-29448

HIGHCVSS 8.8/10EPSS 0.67%

Last modified

CVE-2021-29448 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. The Stored XSS exists in the Pi-hole Admin portal, which can be exploited by the malicious actor with the network access to DNS server. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. The Stored XSS exists in the Pi-hole Admin portal, which can be exploited by the malicious actor with the network access to DNS server. See the referenced GitHub security advisory for patch details.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
0.67%

47.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Pi-HoleFtldns5.7
Pi-HolePi-Hole5.2.4
Pi-HoleWeb Interface< 5.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-29448?
Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. The Stored XSS exists in the Pi-hole Admin portal, which can be exploited by the malicious actor with the network access to DNS server. See the referenced GitHub security advisory for patch details.
How severe is CVE-2021-29448?
CVE-2021-29448 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.
How do I fix CVE-2021-29448?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-29448?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST