CVE-2026-71454 Cross-site scripting in CAPEC-63
Cross-site scripting vulnerability in CAPEC-63 allows attackers to inject malicious scripts into web pages viewed by other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71454?
CVE-2026-71454 is a medium-severity cross-site scripting vulnerability in CWE-79 - Cross-site Scripting CAPEC-63, published on 1 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in CWE-79 - Cross-site Scripting CAPEC-63 allows Cross-Site Scripting (XSS).
This issue affects CAPEC-63: before 3.0b63.
Weakness: CWE-79
Which versions are affected by CVE-2026-71454?
How do I fix CVE-2026-71454?
No fix has been published for CVE-2026-71454 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-71454 being exploited?
There is no known exploitation of CVE-2026-71454 in the wild and no public exploit code.
Sources
Also known as GHSA-3rxj-9m49-463x.