CVE-2025-53834: Caido Toast Vulnerable to Reflected Cross-site Scripting

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-14 · updated 2026-06-17
Weakness: CWE-79

Description

Caido is a web security auditing toolkit. A reflected cross-site scripting (XSS) vulnerability was discovered in Caido’s toast UI component in versions prior to 0.49.0. Toast messages may reflect unsanitized user input in certain tools such as Match&Replace and Scope. This could allow an attacker to craft input that results in arbitrary script execution. Version 0.49.0 fixes the issue.

Affected products

caido: before 0.49.0

References

https://github.com/caido/caido/releases/tag/v0.49.0
https://github.com/caido/caido/security/advisories/GHSA-h8jr-c6qq-h7m7

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